| // Copyright (c) 2006, 2008 Edward Rosten | 
 | // All rights reserved. | 
 | // | 
 | // Redistribution and use in source and binary forms, with or without | 
 | // modification, are permitted provided that the following conditions | 
 | // are met: | 
 | // | 
 | //  *Redistributions of source code must retain the above copyright | 
 | //   notice, this list of conditions and the following disclaimer. | 
 | // | 
 | //  *Redistributions in binary form must reproduce the above copyright | 
 | //   notice, this list of conditions and the following disclaimer in the | 
 | //   documentation and/or other materials provided with the distribution. | 
 | // | 
 | //  *Neither the name of the University of Cambridge nor the names of | 
 | //   its contributors may be used to endorse or promote products derived | 
 | //   from this software without specific prior written permission. | 
 | // | 
 | // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | 
 | // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | 
 | // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | 
 | // A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER | 
 | // OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | 
 | // EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | 
 | // PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | 
 | // PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF | 
 | // LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING | 
 | // NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | 
 | // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 
 |  | 
 | // clang-format off | 
 | /*This is mechanically generated code*/ | 
 | #include <stdlib.h> | 
 | #include "fast.h" | 
 |  | 
 | int aom_fast9_corner_score(const byte* p, const int pixel[], int bstart) | 
 | { | 
 |   int bmin = bstart; | 
 |   int bmax = 255; | 
 |   int b = (bmax + bmin)/2; | 
 |  | 
 |   /*Compute the score using binary search*/ | 
 |   for(;;) | 
 |   { | 
 |     int cb = *p + b; | 
 |     int c_b= *p - b; | 
 |  | 
 |  | 
 |     if( p[pixel[0]] > cb) | 
 |       if( p[pixel[1]] > cb) | 
 |         if( p[pixel[2]] > cb) | 
 |           if( p[pixel[3]] > cb) | 
 |             if( p[pixel[4]] > cb) | 
 |               if( p[pixel[5]] > cb) | 
 |                 if( p[pixel[6]] > cb) | 
 |                   if( p[pixel[7]] > cb) | 
 |                     if( p[pixel[8]] > cb) | 
 |                       goto is_a_corner; | 
 |                     else | 
 |                       if( p[pixel[15]] > cb) | 
 |                         goto is_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                   else if( p[pixel[7]] < c_b) | 
 |                     if( p[pixel[14]] > cb) | 
 |                       if( p[pixel[15]] > cb) | 
 |                         goto is_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                     else if( p[pixel[14]] < c_b) | 
 |                       if( p[pixel[8]] < c_b) | 
 |                         if( p[pixel[9]] < c_b) | 
 |                           if( p[pixel[10]] < c_b) | 
 |                             if( p[pixel[11]] < c_b) | 
 |                               if( p[pixel[12]] < c_b) | 
 |                                 if( p[pixel[13]] < c_b) | 
 |                                   if( p[pixel[15]] < c_b) | 
 |                                     goto is_a_corner; | 
 |                                   else | 
 |                                     goto is_not_a_corner; | 
 |                                 else | 
 |                                   goto is_not_a_corner; | 
 |                               else | 
 |                                 goto is_not_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                     else | 
 |                       goto is_not_a_corner; | 
 |                   else | 
 |                     if( p[pixel[14]] > cb) | 
 |                       if( p[pixel[15]] > cb) | 
 |                         goto is_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                     else | 
 |                       goto is_not_a_corner; | 
 |                 else if( p[pixel[6]] < c_b) | 
 |                   if( p[pixel[15]] > cb) | 
 |                     if( p[pixel[13]] > cb) | 
 |                       if( p[pixel[14]] > cb) | 
 |                         goto is_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                     else if( p[pixel[13]] < c_b) | 
 |                       if( p[pixel[7]] < c_b) | 
 |                         if( p[pixel[8]] < c_b) | 
 |                           if( p[pixel[9]] < c_b) | 
 |                             if( p[pixel[10]] < c_b) | 
 |                               if( p[pixel[11]] < c_b) | 
 |                                 if( p[pixel[12]] < c_b) | 
 |                                   if( p[pixel[14]] < c_b) | 
 |                                     goto is_a_corner; | 
 |                                   else | 
 |                                     goto is_not_a_corner; | 
 |                                 else | 
 |                                   goto is_not_a_corner; | 
 |                               else | 
 |                                 goto is_not_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                     else | 
 |                       goto is_not_a_corner; | 
 |                   else | 
 |                     if( p[pixel[7]] < c_b) | 
 |                       if( p[pixel[8]] < c_b) | 
 |                         if( p[pixel[9]] < c_b) | 
 |                           if( p[pixel[10]] < c_b) | 
 |                             if( p[pixel[11]] < c_b) | 
 |                               if( p[pixel[12]] < c_b) | 
 |                                 if( p[pixel[13]] < c_b) | 
 |                                   if( p[pixel[14]] < c_b) | 
 |                                     goto is_a_corner; | 
 |                                   else | 
 |                                     goto is_not_a_corner; | 
 |                                 else | 
 |                                   goto is_not_a_corner; | 
 |                               else | 
 |                                 goto is_not_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                     else | 
 |                       goto is_not_a_corner; | 
 |                 else | 
 |                   if( p[pixel[13]] > cb) | 
 |                     if( p[pixel[14]] > cb) | 
 |                       if( p[pixel[15]] > cb) | 
 |                         goto is_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                     else | 
 |                       goto is_not_a_corner; | 
 |                   else if( p[pixel[13]] < c_b) | 
 |                     if( p[pixel[7]] < c_b) | 
 |                       if( p[pixel[8]] < c_b) | 
 |                         if( p[pixel[9]] < c_b) | 
 |                           if( p[pixel[10]] < c_b) | 
 |                             if( p[pixel[11]] < c_b) | 
 |                               if( p[pixel[12]] < c_b) | 
 |                                 if( p[pixel[14]] < c_b) | 
 |                                   if( p[pixel[15]] < c_b) | 
 |                                     goto is_a_corner; | 
 |                                   else | 
 |                                     goto is_not_a_corner; | 
 |                                 else | 
 |                                   goto is_not_a_corner; | 
 |                               else | 
 |                                 goto is_not_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                     else | 
 |                       goto is_not_a_corner; | 
 |                   else | 
 |                     goto is_not_a_corner; | 
 |               else if( p[pixel[5]] < c_b) | 
 |                 if( p[pixel[14]] > cb) | 
 |                   if( p[pixel[12]] > cb) | 
 |                     if( p[pixel[13]] > cb) | 
 |                       if( p[pixel[15]] > cb) | 
 |                         goto is_a_corner; | 
 |                       else | 
 |                         if( p[pixel[6]] > cb) | 
 |                           if( p[pixel[7]] > cb) | 
 |                             if( p[pixel[8]] > cb) | 
 |                               if( p[pixel[9]] > cb) | 
 |                                 if( p[pixel[10]] > cb) | 
 |                                   if( p[pixel[11]] > cb) | 
 |                                     goto is_a_corner; | 
 |                                   else | 
 |                                     goto is_not_a_corner; | 
 |                                 else | 
 |                                   goto is_not_a_corner; | 
 |                               else | 
 |                                 goto is_not_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                     else | 
 |                       goto is_not_a_corner; | 
 |                   else if( p[pixel[12]] < c_b) | 
 |                     if( p[pixel[6]] < c_b) | 
 |                       if( p[pixel[7]] < c_b) | 
 |                         if( p[pixel[8]] < c_b) | 
 |                           if( p[pixel[9]] < c_b) | 
 |                             if( p[pixel[10]] < c_b) | 
 |                               if( p[pixel[11]] < c_b) | 
 |                                 if( p[pixel[13]] < c_b) | 
 |                                   goto is_a_corner; | 
 |                                 else | 
 |                                   goto is_not_a_corner; | 
 |                               else | 
 |                                 goto is_not_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                     else | 
 |                       goto is_not_a_corner; | 
 |                   else | 
 |                     goto is_not_a_corner; | 
 |                 else if( p[pixel[14]] < c_b) | 
 |                   if( p[pixel[7]] < c_b) | 
 |                     if( p[pixel[8]] < c_b) | 
 |                       if( p[pixel[9]] < c_b) | 
 |                         if( p[pixel[10]] < c_b) | 
 |                           if( p[pixel[11]] < c_b) | 
 |                             if( p[pixel[12]] < c_b) | 
 |                               if( p[pixel[13]] < c_b) | 
 |                                 if( p[pixel[6]] < c_b) | 
 |                                   goto is_a_corner; | 
 |                                 else | 
 |                                   if( p[pixel[15]] < c_b) | 
 |                                     goto is_a_corner; | 
 |                                   else | 
 |                                     goto is_not_a_corner; | 
 |                               else | 
 |                                 goto is_not_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                     else | 
 |                       goto is_not_a_corner; | 
 |                   else | 
 |                     goto is_not_a_corner; | 
 |                 else | 
 |                   if( p[pixel[6]] < c_b) | 
 |                     if( p[pixel[7]] < c_b) | 
 |                       if( p[pixel[8]] < c_b) | 
 |                         if( p[pixel[9]] < c_b) | 
 |                           if( p[pixel[10]] < c_b) | 
 |                             if( p[pixel[11]] < c_b) | 
 |                               if( p[pixel[12]] < c_b) | 
 |                                 if( p[pixel[13]] < c_b) | 
 |                                   goto is_a_corner; | 
 |                                 else | 
 |                                   goto is_not_a_corner; | 
 |                               else | 
 |                                 goto is_not_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                     else | 
 |                       goto is_not_a_corner; | 
 |                   else | 
 |                     goto is_not_a_corner; | 
 |               else | 
 |                 if( p[pixel[12]] > cb) | 
 |                   if( p[pixel[13]] > cb) | 
 |                     if( p[pixel[14]] > cb) | 
 |                       if( p[pixel[15]] > cb) | 
 |                         goto is_a_corner; | 
 |                       else | 
 |                         if( p[pixel[6]] > cb) | 
 |                           if( p[pixel[7]] > cb) | 
 |                             if( p[pixel[8]] > cb) | 
 |                               if( p[pixel[9]] > cb) | 
 |                                 if( p[pixel[10]] > cb) | 
 |                                   if( p[pixel[11]] > cb) | 
 |                                     goto is_a_corner; | 
 |                                   else | 
 |                                     goto is_not_a_corner; | 
 |                                 else | 
 |                                   goto is_not_a_corner; | 
 |                               else | 
 |                                 goto is_not_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                     else | 
 |                       goto is_not_a_corner; | 
 |                   else | 
 |                     goto is_not_a_corner; | 
 |                 else if( p[pixel[12]] < c_b) | 
 |                   if( p[pixel[7]] < c_b) | 
 |                     if( p[pixel[8]] < c_b) | 
 |                       if( p[pixel[9]] < c_b) | 
 |                         if( p[pixel[10]] < c_b) | 
 |                           if( p[pixel[11]] < c_b) | 
 |                             if( p[pixel[13]] < c_b) | 
 |                               if( p[pixel[14]] < c_b) | 
 |                                 if( p[pixel[6]] < c_b) | 
 |                                   goto is_a_corner; | 
 |                                 else | 
 |                                   if( p[pixel[15]] < c_b) | 
 |                                     goto is_a_corner; | 
 |                                   else | 
 |                                     goto is_not_a_corner; | 
 |                               else | 
 |                                 goto is_not_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                     else | 
 |                       goto is_not_a_corner; | 
 |                   else | 
 |                     goto is_not_a_corner; | 
 |                 else | 
 |                   goto is_not_a_corner; | 
 |             else if( p[pixel[4]] < c_b) | 
 |               if( p[pixel[13]] > cb) | 
 |                 if( p[pixel[11]] > cb) | 
 |                   if( p[pixel[12]] > cb) | 
 |                     if( p[pixel[14]] > cb) | 
 |                       if( p[pixel[15]] > cb) | 
 |                         goto is_a_corner; | 
 |                       else | 
 |                         if( p[pixel[6]] > cb) | 
 |                           if( p[pixel[7]] > cb) | 
 |                             if( p[pixel[8]] > cb) | 
 |                               if( p[pixel[9]] > cb) | 
 |                                 if( p[pixel[10]] > cb) | 
 |                                   goto is_a_corner; | 
 |                                 else | 
 |                                   goto is_not_a_corner; | 
 |                               else | 
 |                                 goto is_not_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                     else | 
 |                       if( p[pixel[5]] > cb) | 
 |                         if( p[pixel[6]] > cb) | 
 |                           if( p[pixel[7]] > cb) | 
 |                             if( p[pixel[8]] > cb) | 
 |                               if( p[pixel[9]] > cb) | 
 |                                 if( p[pixel[10]] > cb) | 
 |                                   goto is_a_corner; | 
 |                                 else | 
 |                                   goto is_not_a_corner; | 
 |                               else | 
 |                                 goto is_not_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                   else | 
 |                     goto is_not_a_corner; | 
 |                 else if( p[pixel[11]] < c_b) | 
 |                   if( p[pixel[5]] < c_b) | 
 |                     if( p[pixel[6]] < c_b) | 
 |                       if( p[pixel[7]] < c_b) | 
 |                         if( p[pixel[8]] < c_b) | 
 |                           if( p[pixel[9]] < c_b) | 
 |                             if( p[pixel[10]] < c_b) | 
 |                               if( p[pixel[12]] < c_b) | 
 |                                 goto is_a_corner; | 
 |                               else | 
 |                                 goto is_not_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                     else | 
 |                       goto is_not_a_corner; | 
 |                   else | 
 |                     goto is_not_a_corner; | 
 |                 else | 
 |                   goto is_not_a_corner; | 
 |               else if( p[pixel[13]] < c_b) | 
 |                 if( p[pixel[7]] < c_b) | 
 |                   if( p[pixel[8]] < c_b) | 
 |                     if( p[pixel[9]] < c_b) | 
 |                       if( p[pixel[10]] < c_b) | 
 |                         if( p[pixel[11]] < c_b) | 
 |                           if( p[pixel[12]] < c_b) | 
 |                             if( p[pixel[6]] < c_b) | 
 |                               if( p[pixel[5]] < c_b) | 
 |                                 goto is_a_corner; | 
 |                               else | 
 |                                 if( p[pixel[14]] < c_b) | 
 |                                   goto is_a_corner; | 
 |                                 else | 
 |                                   goto is_not_a_corner; | 
 |                             else | 
 |                               if( p[pixel[14]] < c_b) | 
 |                                 if( p[pixel[15]] < c_b) | 
 |                                   goto is_a_corner; | 
 |                                 else | 
 |                                   goto is_not_a_corner; | 
 |                               else | 
 |                                 goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                     else | 
 |                       goto is_not_a_corner; | 
 |                   else | 
 |                     goto is_not_a_corner; | 
 |                 else | 
 |                   goto is_not_a_corner; | 
 |               else | 
 |                 if( p[pixel[5]] < c_b) | 
 |                   if( p[pixel[6]] < c_b) | 
 |                     if( p[pixel[7]] < c_b) | 
 |                       if( p[pixel[8]] < c_b) | 
 |                         if( p[pixel[9]] < c_b) | 
 |                           if( p[pixel[10]] < c_b) | 
 |                             if( p[pixel[11]] < c_b) | 
 |                               if( p[pixel[12]] < c_b) | 
 |                                 goto is_a_corner; | 
 |                               else | 
 |                                 goto is_not_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                     else | 
 |                       goto is_not_a_corner; | 
 |                   else | 
 |                     goto is_not_a_corner; | 
 |                 else | 
 |                   goto is_not_a_corner; | 
 |             else | 
 |               if( p[pixel[11]] > cb) | 
 |                 if( p[pixel[12]] > cb) | 
 |                   if( p[pixel[13]] > cb) | 
 |                     if( p[pixel[14]] > cb) | 
 |                       if( p[pixel[15]] > cb) | 
 |                         goto is_a_corner; | 
 |                       else | 
 |                         if( p[pixel[6]] > cb) | 
 |                           if( p[pixel[7]] > cb) | 
 |                             if( p[pixel[8]] > cb) | 
 |                               if( p[pixel[9]] > cb) | 
 |                                 if( p[pixel[10]] > cb) | 
 |                                   goto is_a_corner; | 
 |                                 else | 
 |                                   goto is_not_a_corner; | 
 |                               else | 
 |                                 goto is_not_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                     else | 
 |                       if( p[pixel[5]] > cb) | 
 |                         if( p[pixel[6]] > cb) | 
 |                           if( p[pixel[7]] > cb) | 
 |                             if( p[pixel[8]] > cb) | 
 |                               if( p[pixel[9]] > cb) | 
 |                                 if( p[pixel[10]] > cb) | 
 |                                   goto is_a_corner; | 
 |                                 else | 
 |                                   goto is_not_a_corner; | 
 |                               else | 
 |                                 goto is_not_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                   else | 
 |                     goto is_not_a_corner; | 
 |                 else | 
 |                   goto is_not_a_corner; | 
 |               else if( p[pixel[11]] < c_b) | 
 |                 if( p[pixel[7]] < c_b) | 
 |                   if( p[pixel[8]] < c_b) | 
 |                     if( p[pixel[9]] < c_b) | 
 |                       if( p[pixel[10]] < c_b) | 
 |                         if( p[pixel[12]] < c_b) | 
 |                           if( p[pixel[13]] < c_b) | 
 |                             if( p[pixel[6]] < c_b) | 
 |                               if( p[pixel[5]] < c_b) | 
 |                                 goto is_a_corner; | 
 |                               else | 
 |                                 if( p[pixel[14]] < c_b) | 
 |                                   goto is_a_corner; | 
 |                                 else | 
 |                                   goto is_not_a_corner; | 
 |                             else | 
 |                               if( p[pixel[14]] < c_b) | 
 |                                 if( p[pixel[15]] < c_b) | 
 |                                   goto is_a_corner; | 
 |                                 else | 
 |                                   goto is_not_a_corner; | 
 |                               else | 
 |                                 goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                     else | 
 |                       goto is_not_a_corner; | 
 |                   else | 
 |                     goto is_not_a_corner; | 
 |                 else | 
 |                   goto is_not_a_corner; | 
 |               else | 
 |                 goto is_not_a_corner; | 
 |           else if( p[pixel[3]] < c_b) | 
 |             if( p[pixel[10]] > cb) | 
 |               if( p[pixel[11]] > cb) | 
 |                 if( p[pixel[12]] > cb) | 
 |                   if( p[pixel[13]] > cb) | 
 |                     if( p[pixel[14]] > cb) | 
 |                       if( p[pixel[15]] > cb) | 
 |                         goto is_a_corner; | 
 |                       else | 
 |                         if( p[pixel[6]] > cb) | 
 |                           if( p[pixel[7]] > cb) | 
 |                             if( p[pixel[8]] > cb) | 
 |                               if( p[pixel[9]] > cb) | 
 |                                 goto is_a_corner; | 
 |                               else | 
 |                                 goto is_not_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                     else | 
 |                       if( p[pixel[5]] > cb) | 
 |                         if( p[pixel[6]] > cb) | 
 |                           if( p[pixel[7]] > cb) | 
 |                             if( p[pixel[8]] > cb) | 
 |                               if( p[pixel[9]] > cb) | 
 |                                 goto is_a_corner; | 
 |                               else | 
 |                                 goto is_not_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                   else | 
 |                     if( p[pixel[4]] > cb) | 
 |                       if( p[pixel[5]] > cb) | 
 |                         if( p[pixel[6]] > cb) | 
 |                           if( p[pixel[7]] > cb) | 
 |                             if( p[pixel[8]] > cb) | 
 |                               if( p[pixel[9]] > cb) | 
 |                                 goto is_a_corner; | 
 |                               else | 
 |                                 goto is_not_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                     else | 
 |                       goto is_not_a_corner; | 
 |                 else | 
 |                   goto is_not_a_corner; | 
 |               else | 
 |                 goto is_not_a_corner; | 
 |             else if( p[pixel[10]] < c_b) | 
 |               if( p[pixel[7]] < c_b) | 
 |                 if( p[pixel[8]] < c_b) | 
 |                   if( p[pixel[9]] < c_b) | 
 |                     if( p[pixel[11]] < c_b) | 
 |                       if( p[pixel[6]] < c_b) | 
 |                         if( p[pixel[5]] < c_b) | 
 |                           if( p[pixel[4]] < c_b) | 
 |                             goto is_a_corner; | 
 |                           else | 
 |                             if( p[pixel[12]] < c_b) | 
 |                               if( p[pixel[13]] < c_b) | 
 |                                 goto is_a_corner; | 
 |                               else | 
 |                                 goto is_not_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                         else | 
 |                           if( p[pixel[12]] < c_b) | 
 |                             if( p[pixel[13]] < c_b) | 
 |                               if( p[pixel[14]] < c_b) | 
 |                                 goto is_a_corner; | 
 |                               else | 
 |                                 goto is_not_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                       else | 
 |                         if( p[pixel[12]] < c_b) | 
 |                           if( p[pixel[13]] < c_b) | 
 |                             if( p[pixel[14]] < c_b) | 
 |                               if( p[pixel[15]] < c_b) | 
 |                                 goto is_a_corner; | 
 |                               else | 
 |                                 goto is_not_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                     else | 
 |                       goto is_not_a_corner; | 
 |                   else | 
 |                     goto is_not_a_corner; | 
 |                 else | 
 |                   goto is_not_a_corner; | 
 |               else | 
 |                 goto is_not_a_corner; | 
 |             else | 
 |               goto is_not_a_corner; | 
 |           else | 
 |             if( p[pixel[10]] > cb) | 
 |               if( p[pixel[11]] > cb) | 
 |                 if( p[pixel[12]] > cb) | 
 |                   if( p[pixel[13]] > cb) | 
 |                     if( p[pixel[14]] > cb) | 
 |                       if( p[pixel[15]] > cb) | 
 |                         goto is_a_corner; | 
 |                       else | 
 |                         if( p[pixel[6]] > cb) | 
 |                           if( p[pixel[7]] > cb) | 
 |                             if( p[pixel[8]] > cb) | 
 |                               if( p[pixel[9]] > cb) | 
 |                                 goto is_a_corner; | 
 |                               else | 
 |                                 goto is_not_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                     else | 
 |                       if( p[pixel[5]] > cb) | 
 |                         if( p[pixel[6]] > cb) | 
 |                           if( p[pixel[7]] > cb) | 
 |                             if( p[pixel[8]] > cb) | 
 |                               if( p[pixel[9]] > cb) | 
 |                                 goto is_a_corner; | 
 |                               else | 
 |                                 goto is_not_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                   else | 
 |                     if( p[pixel[4]] > cb) | 
 |                       if( p[pixel[5]] > cb) | 
 |                         if( p[pixel[6]] > cb) | 
 |                           if( p[pixel[7]] > cb) | 
 |                             if( p[pixel[8]] > cb) | 
 |                               if( p[pixel[9]] > cb) | 
 |                                 goto is_a_corner; | 
 |                               else | 
 |                                 goto is_not_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                     else | 
 |                       goto is_not_a_corner; | 
 |                 else | 
 |                   goto is_not_a_corner; | 
 |               else | 
 |                 goto is_not_a_corner; | 
 |             else if( p[pixel[10]] < c_b) | 
 |               if( p[pixel[7]] < c_b) | 
 |                 if( p[pixel[8]] < c_b) | 
 |                   if( p[pixel[9]] < c_b) | 
 |                     if( p[pixel[11]] < c_b) | 
 |                       if( p[pixel[12]] < c_b) | 
 |                         if( p[pixel[6]] < c_b) | 
 |                           if( p[pixel[5]] < c_b) | 
 |                             if( p[pixel[4]] < c_b) | 
 |                               goto is_a_corner; | 
 |                             else | 
 |                               if( p[pixel[13]] < c_b) | 
 |                                 goto is_a_corner; | 
 |                               else | 
 |                                 goto is_not_a_corner; | 
 |                           else | 
 |                             if( p[pixel[13]] < c_b) | 
 |                               if( p[pixel[14]] < c_b) | 
 |                                 goto is_a_corner; | 
 |                               else | 
 |                                 goto is_not_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                         else | 
 |                           if( p[pixel[13]] < c_b) | 
 |                             if( p[pixel[14]] < c_b) | 
 |                               if( p[pixel[15]] < c_b) | 
 |                                 goto is_a_corner; | 
 |                               else | 
 |                                 goto is_not_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                     else | 
 |                       goto is_not_a_corner; | 
 |                   else | 
 |                     goto is_not_a_corner; | 
 |                 else | 
 |                   goto is_not_a_corner; | 
 |               else | 
 |                 goto is_not_a_corner; | 
 |             else | 
 |               goto is_not_a_corner; | 
 |         else if( p[pixel[2]] < c_b) | 
 |           if( p[pixel[9]] > cb) | 
 |             if( p[pixel[10]] > cb) | 
 |               if( p[pixel[11]] > cb) | 
 |                 if( p[pixel[12]] > cb) | 
 |                   if( p[pixel[13]] > cb) | 
 |                     if( p[pixel[14]] > cb) | 
 |                       if( p[pixel[15]] > cb) | 
 |                         goto is_a_corner; | 
 |                       else | 
 |                         if( p[pixel[6]] > cb) | 
 |                           if( p[pixel[7]] > cb) | 
 |                             if( p[pixel[8]] > cb) | 
 |                               goto is_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                     else | 
 |                       if( p[pixel[5]] > cb) | 
 |                         if( p[pixel[6]] > cb) | 
 |                           if( p[pixel[7]] > cb) | 
 |                             if( p[pixel[8]] > cb) | 
 |                               goto is_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                   else | 
 |                     if( p[pixel[4]] > cb) | 
 |                       if( p[pixel[5]] > cb) | 
 |                         if( p[pixel[6]] > cb) | 
 |                           if( p[pixel[7]] > cb) | 
 |                             if( p[pixel[8]] > cb) | 
 |                               goto is_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                     else | 
 |                       goto is_not_a_corner; | 
 |                 else | 
 |                   if( p[pixel[3]] > cb) | 
 |                     if( p[pixel[4]] > cb) | 
 |                       if( p[pixel[5]] > cb) | 
 |                         if( p[pixel[6]] > cb) | 
 |                           if( p[pixel[7]] > cb) | 
 |                             if( p[pixel[8]] > cb) | 
 |                               goto is_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                     else | 
 |                       goto is_not_a_corner; | 
 |                   else | 
 |                     goto is_not_a_corner; | 
 |               else | 
 |                 goto is_not_a_corner; | 
 |             else | 
 |               goto is_not_a_corner; | 
 |           else if( p[pixel[9]] < c_b) | 
 |             if( p[pixel[7]] < c_b) | 
 |               if( p[pixel[8]] < c_b) | 
 |                 if( p[pixel[10]] < c_b) | 
 |                   if( p[pixel[6]] < c_b) | 
 |                     if( p[pixel[5]] < c_b) | 
 |                       if( p[pixel[4]] < c_b) | 
 |                         if( p[pixel[3]] < c_b) | 
 |                           goto is_a_corner; | 
 |                         else | 
 |                           if( p[pixel[11]] < c_b) | 
 |                             if( p[pixel[12]] < c_b) | 
 |                               goto is_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                       else | 
 |                         if( p[pixel[11]] < c_b) | 
 |                           if( p[pixel[12]] < c_b) | 
 |                             if( p[pixel[13]] < c_b) | 
 |                               goto is_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                     else | 
 |                       if( p[pixel[11]] < c_b) | 
 |                         if( p[pixel[12]] < c_b) | 
 |                           if( p[pixel[13]] < c_b) | 
 |                             if( p[pixel[14]] < c_b) | 
 |                               goto is_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                   else | 
 |                     if( p[pixel[11]] < c_b) | 
 |                       if( p[pixel[12]] < c_b) | 
 |                         if( p[pixel[13]] < c_b) | 
 |                           if( p[pixel[14]] < c_b) | 
 |                             if( p[pixel[15]] < c_b) | 
 |                               goto is_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                     else | 
 |                       goto is_not_a_corner; | 
 |                 else | 
 |                   goto is_not_a_corner; | 
 |               else | 
 |                 goto is_not_a_corner; | 
 |             else | 
 |               goto is_not_a_corner; | 
 |           else | 
 |             goto is_not_a_corner; | 
 |         else | 
 |           if( p[pixel[9]] > cb) | 
 |             if( p[pixel[10]] > cb) | 
 |               if( p[pixel[11]] > cb) | 
 |                 if( p[pixel[12]] > cb) | 
 |                   if( p[pixel[13]] > cb) | 
 |                     if( p[pixel[14]] > cb) | 
 |                       if( p[pixel[15]] > cb) | 
 |                         goto is_a_corner; | 
 |                       else | 
 |                         if( p[pixel[6]] > cb) | 
 |                           if( p[pixel[7]] > cb) | 
 |                             if( p[pixel[8]] > cb) | 
 |                               goto is_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                     else | 
 |                       if( p[pixel[5]] > cb) | 
 |                         if( p[pixel[6]] > cb) | 
 |                           if( p[pixel[7]] > cb) | 
 |                             if( p[pixel[8]] > cb) | 
 |                               goto is_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                   else | 
 |                     if( p[pixel[4]] > cb) | 
 |                       if( p[pixel[5]] > cb) | 
 |                         if( p[pixel[6]] > cb) | 
 |                           if( p[pixel[7]] > cb) | 
 |                             if( p[pixel[8]] > cb) | 
 |                               goto is_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                     else | 
 |                       goto is_not_a_corner; | 
 |                 else | 
 |                   if( p[pixel[3]] > cb) | 
 |                     if( p[pixel[4]] > cb) | 
 |                       if( p[pixel[5]] > cb) | 
 |                         if( p[pixel[6]] > cb) | 
 |                           if( p[pixel[7]] > cb) | 
 |                             if( p[pixel[8]] > cb) | 
 |                               goto is_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                     else | 
 |                       goto is_not_a_corner; | 
 |                   else | 
 |                     goto is_not_a_corner; | 
 |               else | 
 |                 goto is_not_a_corner; | 
 |             else | 
 |               goto is_not_a_corner; | 
 |           else if( p[pixel[9]] < c_b) | 
 |             if( p[pixel[7]] < c_b) | 
 |               if( p[pixel[8]] < c_b) | 
 |                 if( p[pixel[10]] < c_b) | 
 |                   if( p[pixel[11]] < c_b) | 
 |                     if( p[pixel[6]] < c_b) | 
 |                       if( p[pixel[5]] < c_b) | 
 |                         if( p[pixel[4]] < c_b) | 
 |                           if( p[pixel[3]] < c_b) | 
 |                             goto is_a_corner; | 
 |                           else | 
 |                             if( p[pixel[12]] < c_b) | 
 |                               goto is_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                         else | 
 |                           if( p[pixel[12]] < c_b) | 
 |                             if( p[pixel[13]] < c_b) | 
 |                               goto is_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                       else | 
 |                         if( p[pixel[12]] < c_b) | 
 |                           if( p[pixel[13]] < c_b) | 
 |                             if( p[pixel[14]] < c_b) | 
 |                               goto is_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                     else | 
 |                       if( p[pixel[12]] < c_b) | 
 |                         if( p[pixel[13]] < c_b) | 
 |                           if( p[pixel[14]] < c_b) | 
 |                             if( p[pixel[15]] < c_b) | 
 |                               goto is_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                   else | 
 |                     goto is_not_a_corner; | 
 |                 else | 
 |                   goto is_not_a_corner; | 
 |               else | 
 |                 goto is_not_a_corner; | 
 |             else | 
 |               goto is_not_a_corner; | 
 |           else | 
 |             goto is_not_a_corner; | 
 |       else if( p[pixel[1]] < c_b) | 
 |         if( p[pixel[8]] > cb) | 
 |           if( p[pixel[9]] > cb) | 
 |             if( p[pixel[10]] > cb) | 
 |               if( p[pixel[11]] > cb) | 
 |                 if( p[pixel[12]] > cb) | 
 |                   if( p[pixel[13]] > cb) | 
 |                     if( p[pixel[14]] > cb) | 
 |                       if( p[pixel[15]] > cb) | 
 |                         goto is_a_corner; | 
 |                       else | 
 |                         if( p[pixel[6]] > cb) | 
 |                           if( p[pixel[7]] > cb) | 
 |                             goto is_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                     else | 
 |                       if( p[pixel[5]] > cb) | 
 |                         if( p[pixel[6]] > cb) | 
 |                           if( p[pixel[7]] > cb) | 
 |                             goto is_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                   else | 
 |                     if( p[pixel[4]] > cb) | 
 |                       if( p[pixel[5]] > cb) | 
 |                         if( p[pixel[6]] > cb) | 
 |                           if( p[pixel[7]] > cb) | 
 |                             goto is_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                     else | 
 |                       goto is_not_a_corner; | 
 |                 else | 
 |                   if( p[pixel[3]] > cb) | 
 |                     if( p[pixel[4]] > cb) | 
 |                       if( p[pixel[5]] > cb) | 
 |                         if( p[pixel[6]] > cb) | 
 |                           if( p[pixel[7]] > cb) | 
 |                             goto is_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                     else | 
 |                       goto is_not_a_corner; | 
 |                   else | 
 |                     goto is_not_a_corner; | 
 |               else | 
 |                 if( p[pixel[2]] > cb) | 
 |                   if( p[pixel[3]] > cb) | 
 |                     if( p[pixel[4]] > cb) | 
 |                       if( p[pixel[5]] > cb) | 
 |                         if( p[pixel[6]] > cb) | 
 |                           if( p[pixel[7]] > cb) | 
 |                             goto is_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                     else | 
 |                       goto is_not_a_corner; | 
 |                   else | 
 |                     goto is_not_a_corner; | 
 |                 else | 
 |                   goto is_not_a_corner; | 
 |             else | 
 |               goto is_not_a_corner; | 
 |           else | 
 |             goto is_not_a_corner; | 
 |         else if( p[pixel[8]] < c_b) | 
 |           if( p[pixel[7]] < c_b) | 
 |             if( p[pixel[9]] < c_b) | 
 |               if( p[pixel[6]] < c_b) | 
 |                 if( p[pixel[5]] < c_b) | 
 |                   if( p[pixel[4]] < c_b) | 
 |                     if( p[pixel[3]] < c_b) | 
 |                       if( p[pixel[2]] < c_b) | 
 |                         goto is_a_corner; | 
 |                       else | 
 |                         if( p[pixel[10]] < c_b) | 
 |                           if( p[pixel[11]] < c_b) | 
 |                             goto is_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                     else | 
 |                       if( p[pixel[10]] < c_b) | 
 |                         if( p[pixel[11]] < c_b) | 
 |                           if( p[pixel[12]] < c_b) | 
 |                             goto is_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                   else | 
 |                     if( p[pixel[10]] < c_b) | 
 |                       if( p[pixel[11]] < c_b) | 
 |                         if( p[pixel[12]] < c_b) | 
 |                           if( p[pixel[13]] < c_b) | 
 |                             goto is_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                     else | 
 |                       goto is_not_a_corner; | 
 |                 else | 
 |                   if( p[pixel[10]] < c_b) | 
 |                     if( p[pixel[11]] < c_b) | 
 |                       if( p[pixel[12]] < c_b) | 
 |                         if( p[pixel[13]] < c_b) | 
 |                           if( p[pixel[14]] < c_b) | 
 |                             goto is_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                     else | 
 |                       goto is_not_a_corner; | 
 |                   else | 
 |                     goto is_not_a_corner; | 
 |               else | 
 |                 if( p[pixel[10]] < c_b) | 
 |                   if( p[pixel[11]] < c_b) | 
 |                     if( p[pixel[12]] < c_b) | 
 |                       if( p[pixel[13]] < c_b) | 
 |                         if( p[pixel[14]] < c_b) | 
 |                           if( p[pixel[15]] < c_b) | 
 |                             goto is_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                     else | 
 |                       goto is_not_a_corner; | 
 |                   else | 
 |                     goto is_not_a_corner; | 
 |                 else | 
 |                   goto is_not_a_corner; | 
 |             else | 
 |               goto is_not_a_corner; | 
 |           else | 
 |             goto is_not_a_corner; | 
 |         else | 
 |           goto is_not_a_corner; | 
 |       else | 
 |         if( p[pixel[8]] > cb) | 
 |           if( p[pixel[9]] > cb) | 
 |             if( p[pixel[10]] > cb) | 
 |               if( p[pixel[11]] > cb) | 
 |                 if( p[pixel[12]] > cb) | 
 |                   if( p[pixel[13]] > cb) | 
 |                     if( p[pixel[14]] > cb) | 
 |                       if( p[pixel[15]] > cb) | 
 |                         goto is_a_corner; | 
 |                       else | 
 |                         if( p[pixel[6]] > cb) | 
 |                           if( p[pixel[7]] > cb) | 
 |                             goto is_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                     else | 
 |                       if( p[pixel[5]] > cb) | 
 |                         if( p[pixel[6]] > cb) | 
 |                           if( p[pixel[7]] > cb) | 
 |                             goto is_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                   else | 
 |                     if( p[pixel[4]] > cb) | 
 |                       if( p[pixel[5]] > cb) | 
 |                         if( p[pixel[6]] > cb) | 
 |                           if( p[pixel[7]] > cb) | 
 |                             goto is_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                     else | 
 |                       goto is_not_a_corner; | 
 |                 else | 
 |                   if( p[pixel[3]] > cb) | 
 |                     if( p[pixel[4]] > cb) | 
 |                       if( p[pixel[5]] > cb) | 
 |                         if( p[pixel[6]] > cb) | 
 |                           if( p[pixel[7]] > cb) | 
 |                             goto is_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                     else | 
 |                       goto is_not_a_corner; | 
 |                   else | 
 |                     goto is_not_a_corner; | 
 |               else | 
 |                 if( p[pixel[2]] > cb) | 
 |                   if( p[pixel[3]] > cb) | 
 |                     if( p[pixel[4]] > cb) | 
 |                       if( p[pixel[5]] > cb) | 
 |                         if( p[pixel[6]] > cb) | 
 |                           if( p[pixel[7]] > cb) | 
 |                             goto is_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                     else | 
 |                       goto is_not_a_corner; | 
 |                   else | 
 |                     goto is_not_a_corner; | 
 |                 else | 
 |                   goto is_not_a_corner; | 
 |             else | 
 |               goto is_not_a_corner; | 
 |           else | 
 |             goto is_not_a_corner; | 
 |         else if( p[pixel[8]] < c_b) | 
 |           if( p[pixel[7]] < c_b) | 
 |             if( p[pixel[9]] < c_b) | 
 |               if( p[pixel[10]] < c_b) | 
 |                 if( p[pixel[6]] < c_b) | 
 |                   if( p[pixel[5]] < c_b) | 
 |                     if( p[pixel[4]] < c_b) | 
 |                       if( p[pixel[3]] < c_b) | 
 |                         if( p[pixel[2]] < c_b) | 
 |                           goto is_a_corner; | 
 |                         else | 
 |                           if( p[pixel[11]] < c_b) | 
 |                             goto is_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                       else | 
 |                         if( p[pixel[11]] < c_b) | 
 |                           if( p[pixel[12]] < c_b) | 
 |                             goto is_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                     else | 
 |                       if( p[pixel[11]] < c_b) | 
 |                         if( p[pixel[12]] < c_b) | 
 |                           if( p[pixel[13]] < c_b) | 
 |                             goto is_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                   else | 
 |                     if( p[pixel[11]] < c_b) | 
 |                       if( p[pixel[12]] < c_b) | 
 |                         if( p[pixel[13]] < c_b) | 
 |                           if( p[pixel[14]] < c_b) | 
 |                             goto is_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                     else | 
 |                       goto is_not_a_corner; | 
 |                 else | 
 |                   if( p[pixel[11]] < c_b) | 
 |                     if( p[pixel[12]] < c_b) | 
 |                       if( p[pixel[13]] < c_b) | 
 |                         if( p[pixel[14]] < c_b) | 
 |                           if( p[pixel[15]] < c_b) | 
 |                             goto is_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                     else | 
 |                       goto is_not_a_corner; | 
 |                   else | 
 |                     goto is_not_a_corner; | 
 |               else | 
 |                 goto is_not_a_corner; | 
 |             else | 
 |               goto is_not_a_corner; | 
 |           else | 
 |             goto is_not_a_corner; | 
 |         else | 
 |           goto is_not_a_corner; | 
 |     else if( p[pixel[0]] < c_b) | 
 |       if( p[pixel[1]] > cb) | 
 |         if( p[pixel[8]] > cb) | 
 |           if( p[pixel[7]] > cb) | 
 |             if( p[pixel[9]] > cb) | 
 |               if( p[pixel[6]] > cb) | 
 |                 if( p[pixel[5]] > cb) | 
 |                   if( p[pixel[4]] > cb) | 
 |                     if( p[pixel[3]] > cb) | 
 |                       if( p[pixel[2]] > cb) | 
 |                         goto is_a_corner; | 
 |                       else | 
 |                         if( p[pixel[10]] > cb) | 
 |                           if( p[pixel[11]] > cb) | 
 |                             goto is_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                     else | 
 |                       if( p[pixel[10]] > cb) | 
 |                         if( p[pixel[11]] > cb) | 
 |                           if( p[pixel[12]] > cb) | 
 |                             goto is_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                   else | 
 |                     if( p[pixel[10]] > cb) | 
 |                       if( p[pixel[11]] > cb) | 
 |                         if( p[pixel[12]] > cb) | 
 |                           if( p[pixel[13]] > cb) | 
 |                             goto is_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                     else | 
 |                       goto is_not_a_corner; | 
 |                 else | 
 |                   if( p[pixel[10]] > cb) | 
 |                     if( p[pixel[11]] > cb) | 
 |                       if( p[pixel[12]] > cb) | 
 |                         if( p[pixel[13]] > cb) | 
 |                           if( p[pixel[14]] > cb) | 
 |                             goto is_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                     else | 
 |                       goto is_not_a_corner; | 
 |                   else | 
 |                     goto is_not_a_corner; | 
 |               else | 
 |                 if( p[pixel[10]] > cb) | 
 |                   if( p[pixel[11]] > cb) | 
 |                     if( p[pixel[12]] > cb) | 
 |                       if( p[pixel[13]] > cb) | 
 |                         if( p[pixel[14]] > cb) | 
 |                           if( p[pixel[15]] > cb) | 
 |                             goto is_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                     else | 
 |                       goto is_not_a_corner; | 
 |                   else | 
 |                     goto is_not_a_corner; | 
 |                 else | 
 |                   goto is_not_a_corner; | 
 |             else | 
 |               goto is_not_a_corner; | 
 |           else | 
 |             goto is_not_a_corner; | 
 |         else if( p[pixel[8]] < c_b) | 
 |           if( p[pixel[9]] < c_b) | 
 |             if( p[pixel[10]] < c_b) | 
 |               if( p[pixel[11]] < c_b) | 
 |                 if( p[pixel[12]] < c_b) | 
 |                   if( p[pixel[13]] < c_b) | 
 |                     if( p[pixel[14]] < c_b) | 
 |                       if( p[pixel[15]] < c_b) | 
 |                         goto is_a_corner; | 
 |                       else | 
 |                         if( p[pixel[6]] < c_b) | 
 |                           if( p[pixel[7]] < c_b) | 
 |                             goto is_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                     else | 
 |                       if( p[pixel[5]] < c_b) | 
 |                         if( p[pixel[6]] < c_b) | 
 |                           if( p[pixel[7]] < c_b) | 
 |                             goto is_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                   else | 
 |                     if( p[pixel[4]] < c_b) | 
 |                       if( p[pixel[5]] < c_b) | 
 |                         if( p[pixel[6]] < c_b) | 
 |                           if( p[pixel[7]] < c_b) | 
 |                             goto is_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                     else | 
 |                       goto is_not_a_corner; | 
 |                 else | 
 |                   if( p[pixel[3]] < c_b) | 
 |                     if( p[pixel[4]] < c_b) | 
 |                       if( p[pixel[5]] < c_b) | 
 |                         if( p[pixel[6]] < c_b) | 
 |                           if( p[pixel[7]] < c_b) | 
 |                             goto is_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                     else | 
 |                       goto is_not_a_corner; | 
 |                   else | 
 |                     goto is_not_a_corner; | 
 |               else | 
 |                 if( p[pixel[2]] < c_b) | 
 |                   if( p[pixel[3]] < c_b) | 
 |                     if( p[pixel[4]] < c_b) | 
 |                       if( p[pixel[5]] < c_b) | 
 |                         if( p[pixel[6]] < c_b) | 
 |                           if( p[pixel[7]] < c_b) | 
 |                             goto is_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                     else | 
 |                       goto is_not_a_corner; | 
 |                   else | 
 |                     goto is_not_a_corner; | 
 |                 else | 
 |                   goto is_not_a_corner; | 
 |             else | 
 |               goto is_not_a_corner; | 
 |           else | 
 |             goto is_not_a_corner; | 
 |         else | 
 |           goto is_not_a_corner; | 
 |       else if( p[pixel[1]] < c_b) | 
 |         if( p[pixel[2]] > cb) | 
 |           if( p[pixel[9]] > cb) | 
 |             if( p[pixel[7]] > cb) | 
 |               if( p[pixel[8]] > cb) | 
 |                 if( p[pixel[10]] > cb) | 
 |                   if( p[pixel[6]] > cb) | 
 |                     if( p[pixel[5]] > cb) | 
 |                       if( p[pixel[4]] > cb) | 
 |                         if( p[pixel[3]] > cb) | 
 |                           goto is_a_corner; | 
 |                         else | 
 |                           if( p[pixel[11]] > cb) | 
 |                             if( p[pixel[12]] > cb) | 
 |                               goto is_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                       else | 
 |                         if( p[pixel[11]] > cb) | 
 |                           if( p[pixel[12]] > cb) | 
 |                             if( p[pixel[13]] > cb) | 
 |                               goto is_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                     else | 
 |                       if( p[pixel[11]] > cb) | 
 |                         if( p[pixel[12]] > cb) | 
 |                           if( p[pixel[13]] > cb) | 
 |                             if( p[pixel[14]] > cb) | 
 |                               goto is_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                   else | 
 |                     if( p[pixel[11]] > cb) | 
 |                       if( p[pixel[12]] > cb) | 
 |                         if( p[pixel[13]] > cb) | 
 |                           if( p[pixel[14]] > cb) | 
 |                             if( p[pixel[15]] > cb) | 
 |                               goto is_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                     else | 
 |                       goto is_not_a_corner; | 
 |                 else | 
 |                   goto is_not_a_corner; | 
 |               else | 
 |                 goto is_not_a_corner; | 
 |             else | 
 |               goto is_not_a_corner; | 
 |           else if( p[pixel[9]] < c_b) | 
 |             if( p[pixel[10]] < c_b) | 
 |               if( p[pixel[11]] < c_b) | 
 |                 if( p[pixel[12]] < c_b) | 
 |                   if( p[pixel[13]] < c_b) | 
 |                     if( p[pixel[14]] < c_b) | 
 |                       if( p[pixel[15]] < c_b) | 
 |                         goto is_a_corner; | 
 |                       else | 
 |                         if( p[pixel[6]] < c_b) | 
 |                           if( p[pixel[7]] < c_b) | 
 |                             if( p[pixel[8]] < c_b) | 
 |                               goto is_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                     else | 
 |                       if( p[pixel[5]] < c_b) | 
 |                         if( p[pixel[6]] < c_b) | 
 |                           if( p[pixel[7]] < c_b) | 
 |                             if( p[pixel[8]] < c_b) | 
 |                               goto is_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                   else | 
 |                     if( p[pixel[4]] < c_b) | 
 |                       if( p[pixel[5]] < c_b) | 
 |                         if( p[pixel[6]] < c_b) | 
 |                           if( p[pixel[7]] < c_b) | 
 |                             if( p[pixel[8]] < c_b) | 
 |                               goto is_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                     else | 
 |                       goto is_not_a_corner; | 
 |                 else | 
 |                   if( p[pixel[3]] < c_b) | 
 |                     if( p[pixel[4]] < c_b) | 
 |                       if( p[pixel[5]] < c_b) | 
 |                         if( p[pixel[6]] < c_b) | 
 |                           if( p[pixel[7]] < c_b) | 
 |                             if( p[pixel[8]] < c_b) | 
 |                               goto is_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                     else | 
 |                       goto is_not_a_corner; | 
 |                   else | 
 |                     goto is_not_a_corner; | 
 |               else | 
 |                 goto is_not_a_corner; | 
 |             else | 
 |               goto is_not_a_corner; | 
 |           else | 
 |             goto is_not_a_corner; | 
 |         else if( p[pixel[2]] < c_b) | 
 |           if( p[pixel[3]] > cb) | 
 |             if( p[pixel[10]] > cb) | 
 |               if( p[pixel[7]] > cb) | 
 |                 if( p[pixel[8]] > cb) | 
 |                   if( p[pixel[9]] > cb) | 
 |                     if( p[pixel[11]] > cb) | 
 |                       if( p[pixel[6]] > cb) | 
 |                         if( p[pixel[5]] > cb) | 
 |                           if( p[pixel[4]] > cb) | 
 |                             goto is_a_corner; | 
 |                           else | 
 |                             if( p[pixel[12]] > cb) | 
 |                               if( p[pixel[13]] > cb) | 
 |                                 goto is_a_corner; | 
 |                               else | 
 |                                 goto is_not_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                         else | 
 |                           if( p[pixel[12]] > cb) | 
 |                             if( p[pixel[13]] > cb) | 
 |                               if( p[pixel[14]] > cb) | 
 |                                 goto is_a_corner; | 
 |                               else | 
 |                                 goto is_not_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                       else | 
 |                         if( p[pixel[12]] > cb) | 
 |                           if( p[pixel[13]] > cb) | 
 |                             if( p[pixel[14]] > cb) | 
 |                               if( p[pixel[15]] > cb) | 
 |                                 goto is_a_corner; | 
 |                               else | 
 |                                 goto is_not_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                     else | 
 |                       goto is_not_a_corner; | 
 |                   else | 
 |                     goto is_not_a_corner; | 
 |                 else | 
 |                   goto is_not_a_corner; | 
 |               else | 
 |                 goto is_not_a_corner; | 
 |             else if( p[pixel[10]] < c_b) | 
 |               if( p[pixel[11]] < c_b) | 
 |                 if( p[pixel[12]] < c_b) | 
 |                   if( p[pixel[13]] < c_b) | 
 |                     if( p[pixel[14]] < c_b) | 
 |                       if( p[pixel[15]] < c_b) | 
 |                         goto is_a_corner; | 
 |                       else | 
 |                         if( p[pixel[6]] < c_b) | 
 |                           if( p[pixel[7]] < c_b) | 
 |                             if( p[pixel[8]] < c_b) | 
 |                               if( p[pixel[9]] < c_b) | 
 |                                 goto is_a_corner; | 
 |                               else | 
 |                                 goto is_not_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                     else | 
 |                       if( p[pixel[5]] < c_b) | 
 |                         if( p[pixel[6]] < c_b) | 
 |                           if( p[pixel[7]] < c_b) | 
 |                             if( p[pixel[8]] < c_b) | 
 |                               if( p[pixel[9]] < c_b) | 
 |                                 goto is_a_corner; | 
 |                               else | 
 |                                 goto is_not_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                   else | 
 |                     if( p[pixel[4]] < c_b) | 
 |                       if( p[pixel[5]] < c_b) | 
 |                         if( p[pixel[6]] < c_b) | 
 |                           if( p[pixel[7]] < c_b) | 
 |                             if( p[pixel[8]] < c_b) | 
 |                               if( p[pixel[9]] < c_b) | 
 |                                 goto is_a_corner; | 
 |                               else | 
 |                                 goto is_not_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                     else | 
 |                       goto is_not_a_corner; | 
 |                 else | 
 |                   goto is_not_a_corner; | 
 |               else | 
 |                 goto is_not_a_corner; | 
 |             else | 
 |               goto is_not_a_corner; | 
 |           else if( p[pixel[3]] < c_b) | 
 |             if( p[pixel[4]] > cb) | 
 |               if( p[pixel[13]] > cb) | 
 |                 if( p[pixel[7]] > cb) | 
 |                   if( p[pixel[8]] > cb) | 
 |                     if( p[pixel[9]] > cb) | 
 |                       if( p[pixel[10]] > cb) | 
 |                         if( p[pixel[11]] > cb) | 
 |                           if( p[pixel[12]] > cb) | 
 |                             if( p[pixel[6]] > cb) | 
 |                               if( p[pixel[5]] > cb) | 
 |                                 goto is_a_corner; | 
 |                               else | 
 |                                 if( p[pixel[14]] > cb) | 
 |                                   goto is_a_corner; | 
 |                                 else | 
 |                                   goto is_not_a_corner; | 
 |                             else | 
 |                               if( p[pixel[14]] > cb) | 
 |                                 if( p[pixel[15]] > cb) | 
 |                                   goto is_a_corner; | 
 |                                 else | 
 |                                   goto is_not_a_corner; | 
 |                               else | 
 |                                 goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                     else | 
 |                       goto is_not_a_corner; | 
 |                   else | 
 |                     goto is_not_a_corner; | 
 |                 else | 
 |                   goto is_not_a_corner; | 
 |               else if( p[pixel[13]] < c_b) | 
 |                 if( p[pixel[11]] > cb) | 
 |                   if( p[pixel[5]] > cb) | 
 |                     if( p[pixel[6]] > cb) | 
 |                       if( p[pixel[7]] > cb) | 
 |                         if( p[pixel[8]] > cb) | 
 |                           if( p[pixel[9]] > cb) | 
 |                             if( p[pixel[10]] > cb) | 
 |                               if( p[pixel[12]] > cb) | 
 |                                 goto is_a_corner; | 
 |                               else | 
 |                                 goto is_not_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                     else | 
 |                       goto is_not_a_corner; | 
 |                   else | 
 |                     goto is_not_a_corner; | 
 |                 else if( p[pixel[11]] < c_b) | 
 |                   if( p[pixel[12]] < c_b) | 
 |                     if( p[pixel[14]] < c_b) | 
 |                       if( p[pixel[15]] < c_b) | 
 |                         goto is_a_corner; | 
 |                       else | 
 |                         if( p[pixel[6]] < c_b) | 
 |                           if( p[pixel[7]] < c_b) | 
 |                             if( p[pixel[8]] < c_b) | 
 |                               if( p[pixel[9]] < c_b) | 
 |                                 if( p[pixel[10]] < c_b) | 
 |                                   goto is_a_corner; | 
 |                                 else | 
 |                                   goto is_not_a_corner; | 
 |                               else | 
 |                                 goto is_not_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                     else | 
 |                       if( p[pixel[5]] < c_b) | 
 |                         if( p[pixel[6]] < c_b) | 
 |                           if( p[pixel[7]] < c_b) | 
 |                             if( p[pixel[8]] < c_b) | 
 |                               if( p[pixel[9]] < c_b) | 
 |                                 if( p[pixel[10]] < c_b) | 
 |                                   goto is_a_corner; | 
 |                                 else | 
 |                                   goto is_not_a_corner; | 
 |                               else | 
 |                                 goto is_not_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                   else | 
 |                     goto is_not_a_corner; | 
 |                 else | 
 |                   goto is_not_a_corner; | 
 |               else | 
 |                 if( p[pixel[5]] > cb) | 
 |                   if( p[pixel[6]] > cb) | 
 |                     if( p[pixel[7]] > cb) | 
 |                       if( p[pixel[8]] > cb) | 
 |                         if( p[pixel[9]] > cb) | 
 |                           if( p[pixel[10]] > cb) | 
 |                             if( p[pixel[11]] > cb) | 
 |                               if( p[pixel[12]] > cb) | 
 |                                 goto is_a_corner; | 
 |                               else | 
 |                                 goto is_not_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                     else | 
 |                       goto is_not_a_corner; | 
 |                   else | 
 |                     goto is_not_a_corner; | 
 |                 else | 
 |                   goto is_not_a_corner; | 
 |             else if( p[pixel[4]] < c_b) | 
 |               if( p[pixel[5]] > cb) | 
 |                 if( p[pixel[14]] > cb) | 
 |                   if( p[pixel[7]] > cb) | 
 |                     if( p[pixel[8]] > cb) | 
 |                       if( p[pixel[9]] > cb) | 
 |                         if( p[pixel[10]] > cb) | 
 |                           if( p[pixel[11]] > cb) | 
 |                             if( p[pixel[12]] > cb) | 
 |                               if( p[pixel[13]] > cb) | 
 |                                 if( p[pixel[6]] > cb) | 
 |                                   goto is_a_corner; | 
 |                                 else | 
 |                                   if( p[pixel[15]] > cb) | 
 |                                     goto is_a_corner; | 
 |                                   else | 
 |                                     goto is_not_a_corner; | 
 |                               else | 
 |                                 goto is_not_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                     else | 
 |                       goto is_not_a_corner; | 
 |                   else | 
 |                     goto is_not_a_corner; | 
 |                 else if( p[pixel[14]] < c_b) | 
 |                   if( p[pixel[12]] > cb) | 
 |                     if( p[pixel[6]] > cb) | 
 |                       if( p[pixel[7]] > cb) | 
 |                         if( p[pixel[8]] > cb) | 
 |                           if( p[pixel[9]] > cb) | 
 |                             if( p[pixel[10]] > cb) | 
 |                               if( p[pixel[11]] > cb) | 
 |                                 if( p[pixel[13]] > cb) | 
 |                                   goto is_a_corner; | 
 |                                 else | 
 |                                   goto is_not_a_corner; | 
 |                               else | 
 |                                 goto is_not_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                     else | 
 |                       goto is_not_a_corner; | 
 |                   else if( p[pixel[12]] < c_b) | 
 |                     if( p[pixel[13]] < c_b) | 
 |                       if( p[pixel[15]] < c_b) | 
 |                         goto is_a_corner; | 
 |                       else | 
 |                         if( p[pixel[6]] < c_b) | 
 |                           if( p[pixel[7]] < c_b) | 
 |                             if( p[pixel[8]] < c_b) | 
 |                               if( p[pixel[9]] < c_b) | 
 |                                 if( p[pixel[10]] < c_b) | 
 |                                   if( p[pixel[11]] < c_b) | 
 |                                     goto is_a_corner; | 
 |                                   else | 
 |                                     goto is_not_a_corner; | 
 |                                 else | 
 |                                   goto is_not_a_corner; | 
 |                               else | 
 |                                 goto is_not_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                     else | 
 |                       goto is_not_a_corner; | 
 |                   else | 
 |                     goto is_not_a_corner; | 
 |                 else | 
 |                   if( p[pixel[6]] > cb) | 
 |                     if( p[pixel[7]] > cb) | 
 |                       if( p[pixel[8]] > cb) | 
 |                         if( p[pixel[9]] > cb) | 
 |                           if( p[pixel[10]] > cb) | 
 |                             if( p[pixel[11]] > cb) | 
 |                               if( p[pixel[12]] > cb) | 
 |                                 if( p[pixel[13]] > cb) | 
 |                                   goto is_a_corner; | 
 |                                 else | 
 |                                   goto is_not_a_corner; | 
 |                               else | 
 |                                 goto is_not_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                     else | 
 |                       goto is_not_a_corner; | 
 |                   else | 
 |                     goto is_not_a_corner; | 
 |               else if( p[pixel[5]] < c_b) | 
 |                 if( p[pixel[6]] > cb) | 
 |                   if( p[pixel[15]] < c_b) | 
 |                     if( p[pixel[13]] > cb) | 
 |                       if( p[pixel[7]] > cb) | 
 |                         if( p[pixel[8]] > cb) | 
 |                           if( p[pixel[9]] > cb) | 
 |                             if( p[pixel[10]] > cb) | 
 |                               if( p[pixel[11]] > cb) | 
 |                                 if( p[pixel[12]] > cb) | 
 |                                   if( p[pixel[14]] > cb) | 
 |                                     goto is_a_corner; | 
 |                                   else | 
 |                                     goto is_not_a_corner; | 
 |                                 else | 
 |                                   goto is_not_a_corner; | 
 |                               else | 
 |                                 goto is_not_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                     else if( p[pixel[13]] < c_b) | 
 |                       if( p[pixel[14]] < c_b) | 
 |                         goto is_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                     else | 
 |                       goto is_not_a_corner; | 
 |                   else | 
 |                     if( p[pixel[7]] > cb) | 
 |                       if( p[pixel[8]] > cb) | 
 |                         if( p[pixel[9]] > cb) | 
 |                           if( p[pixel[10]] > cb) | 
 |                             if( p[pixel[11]] > cb) | 
 |                               if( p[pixel[12]] > cb) | 
 |                                 if( p[pixel[13]] > cb) | 
 |                                   if( p[pixel[14]] > cb) | 
 |                                     goto is_a_corner; | 
 |                                   else | 
 |                                     goto is_not_a_corner; | 
 |                                 else | 
 |                                   goto is_not_a_corner; | 
 |                               else | 
 |                                 goto is_not_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                     else | 
 |                       goto is_not_a_corner; | 
 |                 else if( p[pixel[6]] < c_b) | 
 |                   if( p[pixel[7]] > cb) | 
 |                     if( p[pixel[14]] > cb) | 
 |                       if( p[pixel[8]] > cb) | 
 |                         if( p[pixel[9]] > cb) | 
 |                           if( p[pixel[10]] > cb) | 
 |                             if( p[pixel[11]] > cb) | 
 |                               if( p[pixel[12]] > cb) | 
 |                                 if( p[pixel[13]] > cb) | 
 |                                   if( p[pixel[15]] > cb) | 
 |                                     goto is_a_corner; | 
 |                                   else | 
 |                                     goto is_not_a_corner; | 
 |                                 else | 
 |                                   goto is_not_a_corner; | 
 |                               else | 
 |                                 goto is_not_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                     else if( p[pixel[14]] < c_b) | 
 |                       if( p[pixel[15]] < c_b) | 
 |                         goto is_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                     else | 
 |                       goto is_not_a_corner; | 
 |                   else if( p[pixel[7]] < c_b) | 
 |                     if( p[pixel[8]] < c_b) | 
 |                       goto is_a_corner; | 
 |                     else | 
 |                       if( p[pixel[15]] < c_b) | 
 |                         goto is_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                   else | 
 |                     if( p[pixel[14]] < c_b) | 
 |                       if( p[pixel[15]] < c_b) | 
 |                         goto is_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                     else | 
 |                       goto is_not_a_corner; | 
 |                 else | 
 |                   if( p[pixel[13]] > cb) | 
 |                     if( p[pixel[7]] > cb) | 
 |                       if( p[pixel[8]] > cb) | 
 |                         if( p[pixel[9]] > cb) | 
 |                           if( p[pixel[10]] > cb) | 
 |                             if( p[pixel[11]] > cb) | 
 |                               if( p[pixel[12]] > cb) | 
 |                                 if( p[pixel[14]] > cb) | 
 |                                   if( p[pixel[15]] > cb) | 
 |                                     goto is_a_corner; | 
 |                                   else | 
 |                                     goto is_not_a_corner; | 
 |                                 else | 
 |                                   goto is_not_a_corner; | 
 |                               else | 
 |                                 goto is_not_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                     else | 
 |                       goto is_not_a_corner; | 
 |                   else if( p[pixel[13]] < c_b) | 
 |                     if( p[pixel[14]] < c_b) | 
 |                       if( p[pixel[15]] < c_b) | 
 |                         goto is_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                     else | 
 |                       goto is_not_a_corner; | 
 |                   else | 
 |                     goto is_not_a_corner; | 
 |               else | 
 |                 if( p[pixel[12]] > cb) | 
 |                   if( p[pixel[7]] > cb) | 
 |                     if( p[pixel[8]] > cb) | 
 |                       if( p[pixel[9]] > cb) | 
 |                         if( p[pixel[10]] > cb) | 
 |                           if( p[pixel[11]] > cb) | 
 |                             if( p[pixel[13]] > cb) | 
 |                               if( p[pixel[14]] > cb) | 
 |                                 if( p[pixel[6]] > cb) | 
 |                                   goto is_a_corner; | 
 |                                 else | 
 |                                   if( p[pixel[15]] > cb) | 
 |                                     goto is_a_corner; | 
 |                                   else | 
 |                                     goto is_not_a_corner; | 
 |                               else | 
 |                                 goto is_not_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                     else | 
 |                       goto is_not_a_corner; | 
 |                   else | 
 |                     goto is_not_a_corner; | 
 |                 else if( p[pixel[12]] < c_b) | 
 |                   if( p[pixel[13]] < c_b) | 
 |                     if( p[pixel[14]] < c_b) | 
 |                       if( p[pixel[15]] < c_b) | 
 |                         goto is_a_corner; | 
 |                       else | 
 |                         if( p[pixel[6]] < c_b) | 
 |                           if( p[pixel[7]] < c_b) | 
 |                             if( p[pixel[8]] < c_b) | 
 |                               if( p[pixel[9]] < c_b) | 
 |                                 if( p[pixel[10]] < c_b) | 
 |                                   if( p[pixel[11]] < c_b) | 
 |                                     goto is_a_corner; | 
 |                                   else | 
 |                                     goto is_not_a_corner; | 
 |                                 else | 
 |                                   goto is_not_a_corner; | 
 |                               else | 
 |                                 goto is_not_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                     else | 
 |                       goto is_not_a_corner; | 
 |                   else | 
 |                     goto is_not_a_corner; | 
 |                 else | 
 |                   goto is_not_a_corner; | 
 |             else | 
 |               if( p[pixel[11]] > cb) | 
 |                 if( p[pixel[7]] > cb) | 
 |                   if( p[pixel[8]] > cb) | 
 |                     if( p[pixel[9]] > cb) | 
 |                       if( p[pixel[10]] > cb) | 
 |                         if( p[pixel[12]] > cb) | 
 |                           if( p[pixel[13]] > cb) | 
 |                             if( p[pixel[6]] > cb) | 
 |                               if( p[pixel[5]] > cb) | 
 |                                 goto is_a_corner; | 
 |                               else | 
 |                                 if( p[pixel[14]] > cb) | 
 |                                   goto is_a_corner; | 
 |                                 else | 
 |                                   goto is_not_a_corner; | 
 |                             else | 
 |                               if( p[pixel[14]] > cb) | 
 |                                 if( p[pixel[15]] > cb) | 
 |                                   goto is_a_corner; | 
 |                                 else | 
 |                                   goto is_not_a_corner; | 
 |                               else | 
 |                                 goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                     else | 
 |                       goto is_not_a_corner; | 
 |                   else | 
 |                     goto is_not_a_corner; | 
 |                 else | 
 |                   goto is_not_a_corner; | 
 |               else if( p[pixel[11]] < c_b) | 
 |                 if( p[pixel[12]] < c_b) | 
 |                   if( p[pixel[13]] < c_b) | 
 |                     if( p[pixel[14]] < c_b) | 
 |                       if( p[pixel[15]] < c_b) | 
 |                         goto is_a_corner; | 
 |                       else | 
 |                         if( p[pixel[6]] < c_b) | 
 |                           if( p[pixel[7]] < c_b) | 
 |                             if( p[pixel[8]] < c_b) | 
 |                               if( p[pixel[9]] < c_b) | 
 |                                 if( p[pixel[10]] < c_b) | 
 |                                   goto is_a_corner; | 
 |                                 else | 
 |                                   goto is_not_a_corner; | 
 |                               else | 
 |                                 goto is_not_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                     else | 
 |                       if( p[pixel[5]] < c_b) | 
 |                         if( p[pixel[6]] < c_b) | 
 |                           if( p[pixel[7]] < c_b) | 
 |                             if( p[pixel[8]] < c_b) | 
 |                               if( p[pixel[9]] < c_b) | 
 |                                 if( p[pixel[10]] < c_b) | 
 |                                   goto is_a_corner; | 
 |                                 else | 
 |                                   goto is_not_a_corner; | 
 |                               else | 
 |                                 goto is_not_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                   else | 
 |                     goto is_not_a_corner; | 
 |                 else | 
 |                   goto is_not_a_corner; | 
 |               else | 
 |                 goto is_not_a_corner; | 
 |           else | 
 |             if( p[pixel[10]] > cb) | 
 |               if( p[pixel[7]] > cb) | 
 |                 if( p[pixel[8]] > cb) | 
 |                   if( p[pixel[9]] > cb) | 
 |                     if( p[pixel[11]] > cb) | 
 |                       if( p[pixel[12]] > cb) | 
 |                         if( p[pixel[6]] > cb) | 
 |                           if( p[pixel[5]] > cb) | 
 |                             if( p[pixel[4]] > cb) | 
 |                               goto is_a_corner; | 
 |                             else | 
 |                               if( p[pixel[13]] > cb) | 
 |                                 goto is_a_corner; | 
 |                               else | 
 |                                 goto is_not_a_corner; | 
 |                           else | 
 |                             if( p[pixel[13]] > cb) | 
 |                               if( p[pixel[14]] > cb) | 
 |                                 goto is_a_corner; | 
 |                               else | 
 |                                 goto is_not_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                         else | 
 |                           if( p[pixel[13]] > cb) | 
 |                             if( p[pixel[14]] > cb) | 
 |                               if( p[pixel[15]] > cb) | 
 |                                 goto is_a_corner; | 
 |                               else | 
 |                                 goto is_not_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                     else | 
 |                       goto is_not_a_corner; | 
 |                   else | 
 |                     goto is_not_a_corner; | 
 |                 else | 
 |                   goto is_not_a_corner; | 
 |               else | 
 |                 goto is_not_a_corner; | 
 |             else if( p[pixel[10]] < c_b) | 
 |               if( p[pixel[11]] < c_b) | 
 |                 if( p[pixel[12]] < c_b) | 
 |                   if( p[pixel[13]] < c_b) | 
 |                     if( p[pixel[14]] < c_b) | 
 |                       if( p[pixel[15]] < c_b) | 
 |                         goto is_a_corner; | 
 |                       else | 
 |                         if( p[pixel[6]] < c_b) | 
 |                           if( p[pixel[7]] < c_b) | 
 |                             if( p[pixel[8]] < c_b) | 
 |                               if( p[pixel[9]] < c_b) | 
 |                                 goto is_a_corner; | 
 |                               else | 
 |                                 goto is_not_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                     else | 
 |                       if( p[pixel[5]] < c_b) | 
 |                         if( p[pixel[6]] < c_b) | 
 |                           if( p[pixel[7]] < c_b) | 
 |                             if( p[pixel[8]] < c_b) | 
 |                               if( p[pixel[9]] < c_b) | 
 |                                 goto is_a_corner; | 
 |                               else | 
 |                                 goto is_not_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                   else | 
 |                     if( p[pixel[4]] < c_b) | 
 |                       if( p[pixel[5]] < c_b) | 
 |                         if( p[pixel[6]] < c_b) | 
 |                           if( p[pixel[7]] < c_b) | 
 |                             if( p[pixel[8]] < c_b) | 
 |                               if( p[pixel[9]] < c_b) | 
 |                                 goto is_a_corner; | 
 |                               else | 
 |                                 goto is_not_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                     else | 
 |                       goto is_not_a_corner; | 
 |                 else | 
 |                   goto is_not_a_corner; | 
 |               else | 
 |                 goto is_not_a_corner; | 
 |             else | 
 |               goto is_not_a_corner; | 
 |         else | 
 |           if( p[pixel[9]] > cb) | 
 |             if( p[pixel[7]] > cb) | 
 |               if( p[pixel[8]] > cb) | 
 |                 if( p[pixel[10]] > cb) | 
 |                   if( p[pixel[11]] > cb) | 
 |                     if( p[pixel[6]] > cb) | 
 |                       if( p[pixel[5]] > cb) | 
 |                         if( p[pixel[4]] > cb) | 
 |                           if( p[pixel[3]] > cb) | 
 |                             goto is_a_corner; | 
 |                           else | 
 |                             if( p[pixel[12]] > cb) | 
 |                               goto is_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                         else | 
 |                           if( p[pixel[12]] > cb) | 
 |                             if( p[pixel[13]] > cb) | 
 |                               goto is_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                       else | 
 |                         if( p[pixel[12]] > cb) | 
 |                           if( p[pixel[13]] > cb) | 
 |                             if( p[pixel[14]] > cb) | 
 |                               goto is_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                     else | 
 |                       if( p[pixel[12]] > cb) | 
 |                         if( p[pixel[13]] > cb) | 
 |                           if( p[pixel[14]] > cb) | 
 |                             if( p[pixel[15]] > cb) | 
 |                               goto is_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                   else | 
 |                     goto is_not_a_corner; | 
 |                 else | 
 |                   goto is_not_a_corner; | 
 |               else | 
 |                 goto is_not_a_corner; | 
 |             else | 
 |               goto is_not_a_corner; | 
 |           else if( p[pixel[9]] < c_b) | 
 |             if( p[pixel[10]] < c_b) | 
 |               if( p[pixel[11]] < c_b) | 
 |                 if( p[pixel[12]] < c_b) | 
 |                   if( p[pixel[13]] < c_b) | 
 |                     if( p[pixel[14]] < c_b) | 
 |                       if( p[pixel[15]] < c_b) | 
 |                         goto is_a_corner; | 
 |                       else | 
 |                         if( p[pixel[6]] < c_b) | 
 |                           if( p[pixel[7]] < c_b) | 
 |                             if( p[pixel[8]] < c_b) | 
 |                               goto is_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                     else | 
 |                       if( p[pixel[5]] < c_b) | 
 |                         if( p[pixel[6]] < c_b) | 
 |                           if( p[pixel[7]] < c_b) | 
 |                             if( p[pixel[8]] < c_b) | 
 |                               goto is_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                   else | 
 |                     if( p[pixel[4]] < c_b) | 
 |                       if( p[pixel[5]] < c_b) | 
 |                         if( p[pixel[6]] < c_b) | 
 |                           if( p[pixel[7]] < c_b) | 
 |                             if( p[pixel[8]] < c_b) | 
 |                               goto is_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                     else | 
 |                       goto is_not_a_corner; | 
 |                 else | 
 |                   if( p[pixel[3]] < c_b) | 
 |                     if( p[pixel[4]] < c_b) | 
 |                       if( p[pixel[5]] < c_b) | 
 |                         if( p[pixel[6]] < c_b) | 
 |                           if( p[pixel[7]] < c_b) | 
 |                             if( p[pixel[8]] < c_b) | 
 |                               goto is_a_corner; | 
 |                             else | 
 |                               goto is_not_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                     else | 
 |                       goto is_not_a_corner; | 
 |                   else | 
 |                     goto is_not_a_corner; | 
 |               else | 
 |                 goto is_not_a_corner; | 
 |             else | 
 |               goto is_not_a_corner; | 
 |           else | 
 |             goto is_not_a_corner; | 
 |       else | 
 |         if( p[pixel[8]] > cb) | 
 |           if( p[pixel[7]] > cb) | 
 |             if( p[pixel[9]] > cb) | 
 |               if( p[pixel[10]] > cb) | 
 |                 if( p[pixel[6]] > cb) | 
 |                   if( p[pixel[5]] > cb) | 
 |                     if( p[pixel[4]] > cb) | 
 |                       if( p[pixel[3]] > cb) | 
 |                         if( p[pixel[2]] > cb) | 
 |                           goto is_a_corner; | 
 |                         else | 
 |                           if( p[pixel[11]] > cb) | 
 |                             goto is_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                       else | 
 |                         if( p[pixel[11]] > cb) | 
 |                           if( p[pixel[12]] > cb) | 
 |                             goto is_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                     else | 
 |                       if( p[pixel[11]] > cb) | 
 |                         if( p[pixel[12]] > cb) | 
 |                           if( p[pixel[13]] > cb) | 
 |                             goto is_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                   else | 
 |                     if( p[pixel[11]] > cb) | 
 |                       if( p[pixel[12]] > cb) | 
 |                         if( p[pixel[13]] > cb) | 
 |                           if( p[pixel[14]] > cb) | 
 |                             goto is_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                     else | 
 |                       goto is_not_a_corner; | 
 |                 else | 
 |                   if( p[pixel[11]] > cb) | 
 |                     if( p[pixel[12]] > cb) | 
 |                       if( p[pixel[13]] > cb) | 
 |                         if( p[pixel[14]] > cb) | 
 |                           if( p[pixel[15]] > cb) | 
 |                             goto is_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                     else | 
 |                       goto is_not_a_corner; | 
 |                   else | 
 |                     goto is_not_a_corner; | 
 |               else | 
 |                 goto is_not_a_corner; | 
 |             else | 
 |               goto is_not_a_corner; | 
 |           else | 
 |             goto is_not_a_corner; | 
 |         else if( p[pixel[8]] < c_b) | 
 |           if( p[pixel[9]] < c_b) | 
 |             if( p[pixel[10]] < c_b) | 
 |               if( p[pixel[11]] < c_b) | 
 |                 if( p[pixel[12]] < c_b) | 
 |                   if( p[pixel[13]] < c_b) | 
 |                     if( p[pixel[14]] < c_b) | 
 |                       if( p[pixel[15]] < c_b) | 
 |                         goto is_a_corner; | 
 |                       else | 
 |                         if( p[pixel[6]] < c_b) | 
 |                           if( p[pixel[7]] < c_b) | 
 |                             goto is_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                     else | 
 |                       if( p[pixel[5]] < c_b) | 
 |                         if( p[pixel[6]] < c_b) | 
 |                           if( p[pixel[7]] < c_b) | 
 |                             goto is_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                   else | 
 |                     if( p[pixel[4]] < c_b) | 
 |                       if( p[pixel[5]] < c_b) | 
 |                         if( p[pixel[6]] < c_b) | 
 |                           if( p[pixel[7]] < c_b) | 
 |                             goto is_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                     else | 
 |                       goto is_not_a_corner; | 
 |                 else | 
 |                   if( p[pixel[3]] < c_b) | 
 |                     if( p[pixel[4]] < c_b) | 
 |                       if( p[pixel[5]] < c_b) | 
 |                         if( p[pixel[6]] < c_b) | 
 |                           if( p[pixel[7]] < c_b) | 
 |                             goto is_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                     else | 
 |                       goto is_not_a_corner; | 
 |                   else | 
 |                     goto is_not_a_corner; | 
 |               else | 
 |                 if( p[pixel[2]] < c_b) | 
 |                   if( p[pixel[3]] < c_b) | 
 |                     if( p[pixel[4]] < c_b) | 
 |                       if( p[pixel[5]] < c_b) | 
 |                         if( p[pixel[6]] < c_b) | 
 |                           if( p[pixel[7]] < c_b) | 
 |                             goto is_a_corner; | 
 |                           else | 
 |                             goto is_not_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                     else | 
 |                       goto is_not_a_corner; | 
 |                   else | 
 |                     goto is_not_a_corner; | 
 |                 else | 
 |                   goto is_not_a_corner; | 
 |             else | 
 |               goto is_not_a_corner; | 
 |           else | 
 |             goto is_not_a_corner; | 
 |         else | 
 |           goto is_not_a_corner; | 
 |     else | 
 |       if( p[pixel[7]] > cb) | 
 |         if( p[pixel[8]] > cb) | 
 |           if( p[pixel[9]] > cb) | 
 |             if( p[pixel[6]] > cb) | 
 |               if( p[pixel[5]] > cb) | 
 |                 if( p[pixel[4]] > cb) | 
 |                   if( p[pixel[3]] > cb) | 
 |                     if( p[pixel[2]] > cb) | 
 |                       if( p[pixel[1]] > cb) | 
 |                         goto is_a_corner; | 
 |                       else | 
 |                         if( p[pixel[10]] > cb) | 
 |                           goto is_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                     else | 
 |                       if( p[pixel[10]] > cb) | 
 |                         if( p[pixel[11]] > cb) | 
 |                           goto is_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                   else | 
 |                     if( p[pixel[10]] > cb) | 
 |                       if( p[pixel[11]] > cb) | 
 |                         if( p[pixel[12]] > cb) | 
 |                           goto is_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                     else | 
 |                       goto is_not_a_corner; | 
 |                 else | 
 |                   if( p[pixel[10]] > cb) | 
 |                     if( p[pixel[11]] > cb) | 
 |                       if( p[pixel[12]] > cb) | 
 |                         if( p[pixel[13]] > cb) | 
 |                           goto is_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                     else | 
 |                       goto is_not_a_corner; | 
 |                   else | 
 |                     goto is_not_a_corner; | 
 |               else | 
 |                 if( p[pixel[10]] > cb) | 
 |                   if( p[pixel[11]] > cb) | 
 |                     if( p[pixel[12]] > cb) | 
 |                       if( p[pixel[13]] > cb) | 
 |                         if( p[pixel[14]] > cb) | 
 |                           goto is_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                     else | 
 |                       goto is_not_a_corner; | 
 |                   else | 
 |                     goto is_not_a_corner; | 
 |                 else | 
 |                   goto is_not_a_corner; | 
 |             else | 
 |               if( p[pixel[10]] > cb) | 
 |                 if( p[pixel[11]] > cb) | 
 |                   if( p[pixel[12]] > cb) | 
 |                     if( p[pixel[13]] > cb) | 
 |                       if( p[pixel[14]] > cb) | 
 |                         if( p[pixel[15]] > cb) | 
 |                           goto is_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                     else | 
 |                       goto is_not_a_corner; | 
 |                   else | 
 |                     goto is_not_a_corner; | 
 |                 else | 
 |                   goto is_not_a_corner; | 
 |               else | 
 |                 goto is_not_a_corner; | 
 |           else | 
 |             goto is_not_a_corner; | 
 |         else | 
 |           goto is_not_a_corner; | 
 |       else if( p[pixel[7]] < c_b) | 
 |         if( p[pixel[8]] < c_b) | 
 |           if( p[pixel[9]] < c_b) | 
 |             if( p[pixel[6]] < c_b) | 
 |               if( p[pixel[5]] < c_b) | 
 |                 if( p[pixel[4]] < c_b) | 
 |                   if( p[pixel[3]] < c_b) | 
 |                     if( p[pixel[2]] < c_b) | 
 |                       if( p[pixel[1]] < c_b) | 
 |                         goto is_a_corner; | 
 |                       else | 
 |                         if( p[pixel[10]] < c_b) | 
 |                           goto is_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                     else | 
 |                       if( p[pixel[10]] < c_b) | 
 |                         if( p[pixel[11]] < c_b) | 
 |                           goto is_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                   else | 
 |                     if( p[pixel[10]] < c_b) | 
 |                       if( p[pixel[11]] < c_b) | 
 |                         if( p[pixel[12]] < c_b) | 
 |                           goto is_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                     else | 
 |                       goto is_not_a_corner; | 
 |                 else | 
 |                   if( p[pixel[10]] < c_b) | 
 |                     if( p[pixel[11]] < c_b) | 
 |                       if( p[pixel[12]] < c_b) | 
 |                         if( p[pixel[13]] < c_b) | 
 |                           goto is_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                     else | 
 |                       goto is_not_a_corner; | 
 |                   else | 
 |                     goto is_not_a_corner; | 
 |               else | 
 |                 if( p[pixel[10]] < c_b) | 
 |                   if( p[pixel[11]] < c_b) | 
 |                     if( p[pixel[12]] < c_b) | 
 |                       if( p[pixel[13]] < c_b) | 
 |                         if( p[pixel[14]] < c_b) | 
 |                           goto is_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                     else | 
 |                       goto is_not_a_corner; | 
 |                   else | 
 |                     goto is_not_a_corner; | 
 |                 else | 
 |                   goto is_not_a_corner; | 
 |             else | 
 |               if( p[pixel[10]] < c_b) | 
 |                 if( p[pixel[11]] < c_b) | 
 |                   if( p[pixel[12]] < c_b) | 
 |                     if( p[pixel[13]] < c_b) | 
 |                       if( p[pixel[14]] < c_b) | 
 |                         if( p[pixel[15]] < c_b) | 
 |                           goto is_a_corner; | 
 |                         else | 
 |                           goto is_not_a_corner; | 
 |                       else | 
 |                         goto is_not_a_corner; | 
 |                     else | 
 |                       goto is_not_a_corner; | 
 |                   else | 
 |                     goto is_not_a_corner; | 
 |                 else | 
 |                   goto is_not_a_corner; | 
 |               else | 
 |                 goto is_not_a_corner; | 
 |           else | 
 |             goto is_not_a_corner; | 
 |         else | 
 |           goto is_not_a_corner; | 
 |       else | 
 |         goto is_not_a_corner; | 
 |  | 
 | is_a_corner: | 
 |     bmin=b; | 
 |     goto end_if; | 
 |  | 
 | is_not_a_corner: | 
 |     bmax=b; | 
 |     goto end_if; | 
 |  | 
 | end_if: | 
 |  | 
 |     if(bmin == bmax - 1 || bmin == bmax) | 
 |       return bmin; | 
 |     b = (bmin + bmax) / 2; | 
 |   } | 
 | } | 
 |  | 
 | static void make_offsets(int pixel[], int row_stride) | 
 | { | 
 |   pixel[0] = 0 + row_stride * 3; | 
 |   pixel[1] = 1 + row_stride * 3; | 
 |   pixel[2] = 2 + row_stride * 2; | 
 |   pixel[3] = 3 + row_stride * 1; | 
 |   pixel[4] = 3 + row_stride * 0; | 
 |   pixel[5] = 3 + row_stride * -1; | 
 |   pixel[6] = 2 + row_stride * -2; | 
 |   pixel[7] = 1 + row_stride * -3; | 
 |   pixel[8] = 0 + row_stride * -3; | 
 |   pixel[9] = -1 + row_stride * -3; | 
 |   pixel[10] = -2 + row_stride * -2; | 
 |   pixel[11] = -3 + row_stride * -1; | 
 |   pixel[12] = -3 + row_stride * 0; | 
 |   pixel[13] = -3 + row_stride * 1; | 
 |   pixel[14] = -2 + row_stride * 2; | 
 |   pixel[15] = -1 + row_stride * 3; | 
 | } | 
 |  | 
 |  | 
 |  | 
 | int* aom_fast9_score(const byte* i, int stride, const xy* corners, int num_corners, int b) | 
 | { | 
 |   int* scores = (int*)malloc(sizeof(int)* num_corners); | 
 |   int n; | 
 |  | 
 |   int pixel[16]; | 
 |   if(!scores) return NULL; | 
 |   make_offsets(pixel, stride); | 
 |  | 
 |   for(n=0; n < num_corners; n++) | 
 |     scores[n] = aom_fast9_corner_score(i + corners[n].y*stride + corners[n].x, pixel, b); | 
 |  | 
 |   return scores; | 
 | } | 
 |  | 
 |  | 
 | xy* aom_fast9_detect(const byte* im, int xsize, int ysize, int stride, int b, int* ret_num_corners) | 
 | { | 
 |   int num_corners=0; | 
 |   xy* ret_corners; | 
 |   int rsize=512; | 
 |   int pixel[16]; | 
 |   int x, y; | 
 |  | 
 |   ret_corners = (xy*)malloc(sizeof(xy)*rsize); | 
 |   if(!ret_corners) return NULL; | 
 |   make_offsets(pixel, stride); | 
 |  | 
 |   for(y=3; y < ysize - 3; y++) | 
 |     for(x=3; x < xsize - 3; x++) | 
 |     { | 
 |       const byte* p = im + y*stride + x; | 
 |  | 
 |       int cb = *p + b; | 
 |       int c_b= *p - b; | 
 |       if(p[pixel[0]] > cb) | 
 |         if(p[pixel[1]] > cb) | 
 |           if(p[pixel[2]] > cb) | 
 |             if(p[pixel[3]] > cb) | 
 |               if(p[pixel[4]] > cb) | 
 |                 if(p[pixel[5]] > cb) | 
 |                   if(p[pixel[6]] > cb) | 
 |                     if(p[pixel[7]] > cb) | 
 |                       if(p[pixel[8]] > cb) | 
 |                       {} | 
 |                       else | 
 |                         if(p[pixel[15]] > cb) | 
 |                         {} | 
 |                         else | 
 |                           continue; | 
 |                     else if(p[pixel[7]] < c_b) | 
 |                       if(p[pixel[14]] > cb) | 
 |                         if(p[pixel[15]] > cb) | 
 |                         {} | 
 |                         else | 
 |                           continue; | 
 |                       else if(p[pixel[14]] < c_b) | 
 |                         if(p[pixel[8]] < c_b) | 
 |                           if(p[pixel[9]] < c_b) | 
 |                             if(p[pixel[10]] < c_b) | 
 |                               if(p[pixel[11]] < c_b) | 
 |                                 if(p[pixel[12]] < c_b) | 
 |                                   if(p[pixel[13]] < c_b) | 
 |                                     if(p[pixel[15]] < c_b) | 
 |                                     {} | 
 |                                     else | 
 |                                       continue; | 
 |                                   else | 
 |                                     continue; | 
 |                                 else | 
 |                                   continue; | 
 |                               else | 
 |                                 continue; | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                       else | 
 |                         continue; | 
 |                     else | 
 |                       if(p[pixel[14]] > cb) | 
 |                         if(p[pixel[15]] > cb) | 
 |                         {} | 
 |                         else | 
 |                           continue; | 
 |                       else | 
 |                         continue; | 
 |                   else if(p[pixel[6]] < c_b) | 
 |                     if(p[pixel[15]] > cb) | 
 |                       if(p[pixel[13]] > cb) | 
 |                         if(p[pixel[14]] > cb) | 
 |                         {} | 
 |                         else | 
 |                           continue; | 
 |                       else if(p[pixel[13]] < c_b) | 
 |                         if(p[pixel[7]] < c_b) | 
 |                           if(p[pixel[8]] < c_b) | 
 |                             if(p[pixel[9]] < c_b) | 
 |                               if(p[pixel[10]] < c_b) | 
 |                                 if(p[pixel[11]] < c_b) | 
 |                                   if(p[pixel[12]] < c_b) | 
 |                                     if(p[pixel[14]] < c_b) | 
 |                                     {} | 
 |                                     else | 
 |                                       continue; | 
 |                                   else | 
 |                                     continue; | 
 |                                 else | 
 |                                   continue; | 
 |                               else | 
 |                                 continue; | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                       else | 
 |                         continue; | 
 |                     else | 
 |                       if(p[pixel[7]] < c_b) | 
 |                         if(p[pixel[8]] < c_b) | 
 |                           if(p[pixel[9]] < c_b) | 
 |                             if(p[pixel[10]] < c_b) | 
 |                               if(p[pixel[11]] < c_b) | 
 |                                 if(p[pixel[12]] < c_b) | 
 |                                   if(p[pixel[13]] < c_b) | 
 |                                     if(p[pixel[14]] < c_b) | 
 |                                     {} | 
 |                                     else | 
 |                                       continue; | 
 |                                   else | 
 |                                     continue; | 
 |                                 else | 
 |                                   continue; | 
 |                               else | 
 |                                 continue; | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                       else | 
 |                         continue; | 
 |                   else | 
 |                     if(p[pixel[13]] > cb) | 
 |                       if(p[pixel[14]] > cb) | 
 |                         if(p[pixel[15]] > cb) | 
 |                         {} | 
 |                         else | 
 |                           continue; | 
 |                       else | 
 |                         continue; | 
 |                     else if(p[pixel[13]] < c_b) | 
 |                       if(p[pixel[7]] < c_b) | 
 |                         if(p[pixel[8]] < c_b) | 
 |                           if(p[pixel[9]] < c_b) | 
 |                             if(p[pixel[10]] < c_b) | 
 |                               if(p[pixel[11]] < c_b) | 
 |                                 if(p[pixel[12]] < c_b) | 
 |                                   if(p[pixel[14]] < c_b) | 
 |                                     if(p[pixel[15]] < c_b) | 
 |                                     {} | 
 |                                     else | 
 |                                       continue; | 
 |                                   else | 
 |                                     continue; | 
 |                                 else | 
 |                                   continue; | 
 |                               else | 
 |                                 continue; | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                       else | 
 |                         continue; | 
 |                     else | 
 |                       continue; | 
 |                 else if(p[pixel[5]] < c_b) | 
 |                   if(p[pixel[14]] > cb) | 
 |                     if(p[pixel[12]] > cb) | 
 |                       if(p[pixel[13]] > cb) | 
 |                         if(p[pixel[15]] > cb) | 
 |                         {} | 
 |                         else | 
 |                           if(p[pixel[6]] > cb) | 
 |                             if(p[pixel[7]] > cb) | 
 |                               if(p[pixel[8]] > cb) | 
 |                                 if(p[pixel[9]] > cb) | 
 |                                   if(p[pixel[10]] > cb) | 
 |                                     if(p[pixel[11]] > cb) | 
 |                                     {} | 
 |                                     else | 
 |                                       continue; | 
 |                                   else | 
 |                                     continue; | 
 |                                 else | 
 |                                   continue; | 
 |                               else | 
 |                                 continue; | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                       else | 
 |                         continue; | 
 |                     else if(p[pixel[12]] < c_b) | 
 |                       if(p[pixel[6]] < c_b) | 
 |                         if(p[pixel[7]] < c_b) | 
 |                           if(p[pixel[8]] < c_b) | 
 |                             if(p[pixel[9]] < c_b) | 
 |                               if(p[pixel[10]] < c_b) | 
 |                                 if(p[pixel[11]] < c_b) | 
 |                                   if(p[pixel[13]] < c_b) | 
 |                                   {} | 
 |                                   else | 
 |                                     continue; | 
 |                                 else | 
 |                                   continue; | 
 |                               else | 
 |                                 continue; | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                       else | 
 |                         continue; | 
 |                     else | 
 |                       continue; | 
 |                   else if(p[pixel[14]] < c_b) | 
 |                     if(p[pixel[7]] < c_b) | 
 |                       if(p[pixel[8]] < c_b) | 
 |                         if(p[pixel[9]] < c_b) | 
 |                           if(p[pixel[10]] < c_b) | 
 |                             if(p[pixel[11]] < c_b) | 
 |                               if(p[pixel[12]] < c_b) | 
 |                                 if(p[pixel[13]] < c_b) | 
 |                                   if(p[pixel[6]] < c_b) | 
 |                                   {} | 
 |                                   else | 
 |                                     if(p[pixel[15]] < c_b) | 
 |                                     {} | 
 |                                     else | 
 |                                       continue; | 
 |                                 else | 
 |                                   continue; | 
 |                               else | 
 |                                 continue; | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                       else | 
 |                         continue; | 
 |                     else | 
 |                       continue; | 
 |                   else | 
 |                     if(p[pixel[6]] < c_b) | 
 |                       if(p[pixel[7]] < c_b) | 
 |                         if(p[pixel[8]] < c_b) | 
 |                           if(p[pixel[9]] < c_b) | 
 |                             if(p[pixel[10]] < c_b) | 
 |                               if(p[pixel[11]] < c_b) | 
 |                                 if(p[pixel[12]] < c_b) | 
 |                                   if(p[pixel[13]] < c_b) | 
 |                                   {} | 
 |                                   else | 
 |                                     continue; | 
 |                                 else | 
 |                                   continue; | 
 |                               else | 
 |                                 continue; | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                       else | 
 |                         continue; | 
 |                     else | 
 |                       continue; | 
 |                 else | 
 |                   if(p[pixel[12]] > cb) | 
 |                     if(p[pixel[13]] > cb) | 
 |                       if(p[pixel[14]] > cb) | 
 |                         if(p[pixel[15]] > cb) | 
 |                         {} | 
 |                         else | 
 |                           if(p[pixel[6]] > cb) | 
 |                             if(p[pixel[7]] > cb) | 
 |                               if(p[pixel[8]] > cb) | 
 |                                 if(p[pixel[9]] > cb) | 
 |                                   if(p[pixel[10]] > cb) | 
 |                                     if(p[pixel[11]] > cb) | 
 |                                     {} | 
 |                                     else | 
 |                                       continue; | 
 |                                   else | 
 |                                     continue; | 
 |                                 else | 
 |                                   continue; | 
 |                               else | 
 |                                 continue; | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                       else | 
 |                         continue; | 
 |                     else | 
 |                       continue; | 
 |                   else if(p[pixel[12]] < c_b) | 
 |                     if(p[pixel[7]] < c_b) | 
 |                       if(p[pixel[8]] < c_b) | 
 |                         if(p[pixel[9]] < c_b) | 
 |                           if(p[pixel[10]] < c_b) | 
 |                             if(p[pixel[11]] < c_b) | 
 |                               if(p[pixel[13]] < c_b) | 
 |                                 if(p[pixel[14]] < c_b) | 
 |                                   if(p[pixel[6]] < c_b) | 
 |                                   {} | 
 |                                   else | 
 |                                     if(p[pixel[15]] < c_b) | 
 |                                     {} | 
 |                                     else | 
 |                                       continue; | 
 |                                 else | 
 |                                   continue; | 
 |                               else | 
 |                                 continue; | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                       else | 
 |                         continue; | 
 |                     else | 
 |                       continue; | 
 |                   else | 
 |                     continue; | 
 |               else if(p[pixel[4]] < c_b) | 
 |                 if(p[pixel[13]] > cb) | 
 |                   if(p[pixel[11]] > cb) | 
 |                     if(p[pixel[12]] > cb) | 
 |                       if(p[pixel[14]] > cb) | 
 |                         if(p[pixel[15]] > cb) | 
 |                         {} | 
 |                         else | 
 |                           if(p[pixel[6]] > cb) | 
 |                             if(p[pixel[7]] > cb) | 
 |                               if(p[pixel[8]] > cb) | 
 |                                 if(p[pixel[9]] > cb) | 
 |                                   if(p[pixel[10]] > cb) | 
 |                                   {} | 
 |                                   else | 
 |                                     continue; | 
 |                                 else | 
 |                                   continue; | 
 |                               else | 
 |                                 continue; | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                       else | 
 |                         if(p[pixel[5]] > cb) | 
 |                           if(p[pixel[6]] > cb) | 
 |                             if(p[pixel[7]] > cb) | 
 |                               if(p[pixel[8]] > cb) | 
 |                                 if(p[pixel[9]] > cb) | 
 |                                   if(p[pixel[10]] > cb) | 
 |                                   {} | 
 |                                   else | 
 |                                     continue; | 
 |                                 else | 
 |                                   continue; | 
 |                               else | 
 |                                 continue; | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                     else | 
 |                       continue; | 
 |                   else if(p[pixel[11]] < c_b) | 
 |                     if(p[pixel[5]] < c_b) | 
 |                       if(p[pixel[6]] < c_b) | 
 |                         if(p[pixel[7]] < c_b) | 
 |                           if(p[pixel[8]] < c_b) | 
 |                             if(p[pixel[9]] < c_b) | 
 |                               if(p[pixel[10]] < c_b) | 
 |                                 if(p[pixel[12]] < c_b) | 
 |                                 {} | 
 |                                 else | 
 |                                   continue; | 
 |                               else | 
 |                                 continue; | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                       else | 
 |                         continue; | 
 |                     else | 
 |                       continue; | 
 |                   else | 
 |                     continue; | 
 |                 else if(p[pixel[13]] < c_b) | 
 |                   if(p[pixel[7]] < c_b) | 
 |                     if(p[pixel[8]] < c_b) | 
 |                       if(p[pixel[9]] < c_b) | 
 |                         if(p[pixel[10]] < c_b) | 
 |                           if(p[pixel[11]] < c_b) | 
 |                             if(p[pixel[12]] < c_b) | 
 |                               if(p[pixel[6]] < c_b) | 
 |                                 if(p[pixel[5]] < c_b) | 
 |                                 {} | 
 |                                 else | 
 |                                   if(p[pixel[14]] < c_b) | 
 |                                   {} | 
 |                                   else | 
 |                                     continue; | 
 |                               else | 
 |                                 if(p[pixel[14]] < c_b) | 
 |                                   if(p[pixel[15]] < c_b) | 
 |                                   {} | 
 |                                   else | 
 |                                     continue; | 
 |                                 else | 
 |                                   continue; | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                       else | 
 |                         continue; | 
 |                     else | 
 |                       continue; | 
 |                   else | 
 |                     continue; | 
 |                 else | 
 |                   if(p[pixel[5]] < c_b) | 
 |                     if(p[pixel[6]] < c_b) | 
 |                       if(p[pixel[7]] < c_b) | 
 |                         if(p[pixel[8]] < c_b) | 
 |                           if(p[pixel[9]] < c_b) | 
 |                             if(p[pixel[10]] < c_b) | 
 |                               if(p[pixel[11]] < c_b) | 
 |                                 if(p[pixel[12]] < c_b) | 
 |                                 {} | 
 |                                 else | 
 |                                   continue; | 
 |                               else | 
 |                                 continue; | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                       else | 
 |                         continue; | 
 |                     else | 
 |                       continue; | 
 |                   else | 
 |                     continue; | 
 |               else | 
 |                 if(p[pixel[11]] > cb) | 
 |                   if(p[pixel[12]] > cb) | 
 |                     if(p[pixel[13]] > cb) | 
 |                       if(p[pixel[14]] > cb) | 
 |                         if(p[pixel[15]] > cb) | 
 |                         {} | 
 |                         else | 
 |                           if(p[pixel[6]] > cb) | 
 |                             if(p[pixel[7]] > cb) | 
 |                               if(p[pixel[8]] > cb) | 
 |                                 if(p[pixel[9]] > cb) | 
 |                                   if(p[pixel[10]] > cb) | 
 |                                   {} | 
 |                                   else | 
 |                                     continue; | 
 |                                 else | 
 |                                   continue; | 
 |                               else | 
 |                                 continue; | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                       else | 
 |                         if(p[pixel[5]] > cb) | 
 |                           if(p[pixel[6]] > cb) | 
 |                             if(p[pixel[7]] > cb) | 
 |                               if(p[pixel[8]] > cb) | 
 |                                 if(p[pixel[9]] > cb) | 
 |                                   if(p[pixel[10]] > cb) | 
 |                                   {} | 
 |                                   else | 
 |                                     continue; | 
 |                                 else | 
 |                                   continue; | 
 |                               else | 
 |                                 continue; | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                     else | 
 |                       continue; | 
 |                   else | 
 |                     continue; | 
 |                 else if(p[pixel[11]] < c_b) | 
 |                   if(p[pixel[7]] < c_b) | 
 |                     if(p[pixel[8]] < c_b) | 
 |                       if(p[pixel[9]] < c_b) | 
 |                         if(p[pixel[10]] < c_b) | 
 |                           if(p[pixel[12]] < c_b) | 
 |                             if(p[pixel[13]] < c_b) | 
 |                               if(p[pixel[6]] < c_b) | 
 |                                 if(p[pixel[5]] < c_b) | 
 |                                 {} | 
 |                                 else | 
 |                                   if(p[pixel[14]] < c_b) | 
 |                                   {} | 
 |                                   else | 
 |                                     continue; | 
 |                               else | 
 |                                 if(p[pixel[14]] < c_b) | 
 |                                   if(p[pixel[15]] < c_b) | 
 |                                   {} | 
 |                                   else | 
 |                                     continue; | 
 |                                 else | 
 |                                   continue; | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                       else | 
 |                         continue; | 
 |                     else | 
 |                       continue; | 
 |                   else | 
 |                     continue; | 
 |                 else | 
 |                   continue; | 
 |             else if(p[pixel[3]] < c_b) | 
 |               if(p[pixel[10]] > cb) | 
 |                 if(p[pixel[11]] > cb) | 
 |                   if(p[pixel[12]] > cb) | 
 |                     if(p[pixel[13]] > cb) | 
 |                       if(p[pixel[14]] > cb) | 
 |                         if(p[pixel[15]] > cb) | 
 |                         {} | 
 |                         else | 
 |                           if(p[pixel[6]] > cb) | 
 |                             if(p[pixel[7]] > cb) | 
 |                               if(p[pixel[8]] > cb) | 
 |                                 if(p[pixel[9]] > cb) | 
 |                                 {} | 
 |                                 else | 
 |                                   continue; | 
 |                               else | 
 |                                 continue; | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                       else | 
 |                         if(p[pixel[5]] > cb) | 
 |                           if(p[pixel[6]] > cb) | 
 |                             if(p[pixel[7]] > cb) | 
 |                               if(p[pixel[8]] > cb) | 
 |                                 if(p[pixel[9]] > cb) | 
 |                                 {} | 
 |                                 else | 
 |                                   continue; | 
 |                               else | 
 |                                 continue; | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                     else | 
 |                       if(p[pixel[4]] > cb) | 
 |                         if(p[pixel[5]] > cb) | 
 |                           if(p[pixel[6]] > cb) | 
 |                             if(p[pixel[7]] > cb) | 
 |                               if(p[pixel[8]] > cb) | 
 |                                 if(p[pixel[9]] > cb) | 
 |                                 {} | 
 |                                 else | 
 |                                   continue; | 
 |                               else | 
 |                                 continue; | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                       else | 
 |                         continue; | 
 |                   else | 
 |                     continue; | 
 |                 else | 
 |                   continue; | 
 |               else if(p[pixel[10]] < c_b) | 
 |                 if(p[pixel[7]] < c_b) | 
 |                   if(p[pixel[8]] < c_b) | 
 |                     if(p[pixel[9]] < c_b) | 
 |                       if(p[pixel[11]] < c_b) | 
 |                         if(p[pixel[6]] < c_b) | 
 |                           if(p[pixel[5]] < c_b) | 
 |                             if(p[pixel[4]] < c_b) | 
 |                             {} | 
 |                             else | 
 |                               if(p[pixel[12]] < c_b) | 
 |                                 if(p[pixel[13]] < c_b) | 
 |                                 {} | 
 |                                 else | 
 |                                   continue; | 
 |                               else | 
 |                                 continue; | 
 |                           else | 
 |                             if(p[pixel[12]] < c_b) | 
 |                               if(p[pixel[13]] < c_b) | 
 |                                 if(p[pixel[14]] < c_b) | 
 |                                 {} | 
 |                                 else | 
 |                                   continue; | 
 |                               else | 
 |                                 continue; | 
 |                             else | 
 |                               continue; | 
 |                         else | 
 |                           if(p[pixel[12]] < c_b) | 
 |                             if(p[pixel[13]] < c_b) | 
 |                               if(p[pixel[14]] < c_b) | 
 |                                 if(p[pixel[15]] < c_b) | 
 |                                 {} | 
 |                                 else | 
 |                                   continue; | 
 |                               else | 
 |                                 continue; | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                       else | 
 |                         continue; | 
 |                     else | 
 |                       continue; | 
 |                   else | 
 |                     continue; | 
 |                 else | 
 |                   continue; | 
 |               else | 
 |                 continue; | 
 |             else | 
 |               if(p[pixel[10]] > cb) | 
 |                 if(p[pixel[11]] > cb) | 
 |                   if(p[pixel[12]] > cb) | 
 |                     if(p[pixel[13]] > cb) | 
 |                       if(p[pixel[14]] > cb) | 
 |                         if(p[pixel[15]] > cb) | 
 |                         {} | 
 |                         else | 
 |                           if(p[pixel[6]] > cb) | 
 |                             if(p[pixel[7]] > cb) | 
 |                               if(p[pixel[8]] > cb) | 
 |                                 if(p[pixel[9]] > cb) | 
 |                                 {} | 
 |                                 else | 
 |                                   continue; | 
 |                               else | 
 |                                 continue; | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                       else | 
 |                         if(p[pixel[5]] > cb) | 
 |                           if(p[pixel[6]] > cb) | 
 |                             if(p[pixel[7]] > cb) | 
 |                               if(p[pixel[8]] > cb) | 
 |                                 if(p[pixel[9]] > cb) | 
 |                                 {} | 
 |                                 else | 
 |                                   continue; | 
 |                               else | 
 |                                 continue; | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                     else | 
 |                       if(p[pixel[4]] > cb) | 
 |                         if(p[pixel[5]] > cb) | 
 |                           if(p[pixel[6]] > cb) | 
 |                             if(p[pixel[7]] > cb) | 
 |                               if(p[pixel[8]] > cb) | 
 |                                 if(p[pixel[9]] > cb) | 
 |                                 {} | 
 |                                 else | 
 |                                   continue; | 
 |                               else | 
 |                                 continue; | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                       else | 
 |                         continue; | 
 |                   else | 
 |                     continue; | 
 |                 else | 
 |                   continue; | 
 |               else if(p[pixel[10]] < c_b) | 
 |                 if(p[pixel[7]] < c_b) | 
 |                   if(p[pixel[8]] < c_b) | 
 |                     if(p[pixel[9]] < c_b) | 
 |                       if(p[pixel[11]] < c_b) | 
 |                         if(p[pixel[12]] < c_b) | 
 |                           if(p[pixel[6]] < c_b) | 
 |                             if(p[pixel[5]] < c_b) | 
 |                               if(p[pixel[4]] < c_b) | 
 |                               {} | 
 |                               else | 
 |                                 if(p[pixel[13]] < c_b) | 
 |                                 {} | 
 |                                 else | 
 |                                   continue; | 
 |                             else | 
 |                               if(p[pixel[13]] < c_b) | 
 |                                 if(p[pixel[14]] < c_b) | 
 |                                 {} | 
 |                                 else | 
 |                                   continue; | 
 |                               else | 
 |                                 continue; | 
 |                           else | 
 |                             if(p[pixel[13]] < c_b) | 
 |                               if(p[pixel[14]] < c_b) | 
 |                                 if(p[pixel[15]] < c_b) | 
 |                                 {} | 
 |                                 else | 
 |                                   continue; | 
 |                               else | 
 |                                 continue; | 
 |                             else | 
 |                               continue; | 
 |                         else | 
 |                           continue; | 
 |                       else | 
 |                         continue; | 
 |                     else | 
 |                       continue; | 
 |                   else | 
 |                     continue; | 
 |                 else | 
 |                   continue; | 
 |               else | 
 |                 continue; | 
 |           else if(p[pixel[2]] < c_b) | 
 |             if(p[pixel[9]] > cb) | 
 |               if(p[pixel[10]] > cb) | 
 |                 if(p[pixel[11]] > cb) | 
 |                   if(p[pixel[12]] > cb) | 
 |                     if(p[pixel[13]] > cb) | 
 |                       if(p[pixel[14]] > cb) | 
 |                         if(p[pixel[15]] > cb) | 
 |                         {} | 
 |                         else | 
 |                           if(p[pixel[6]] > cb) | 
 |                             if(p[pixel[7]] > cb) | 
 |                               if(p[pixel[8]] > cb) | 
 |                               {} | 
 |                               else | 
 |                                 continue; | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                       else | 
 |                         if(p[pixel[5]] > cb) | 
 |                           if(p[pixel[6]] > cb) | 
 |                             if(p[pixel[7]] > cb) | 
 |                               if(p[pixel[8]] > cb) | 
 |                               {} | 
 |                               else | 
 |                                 continue; | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                     else | 
 |                       if(p[pixel[4]] > cb) | 
 |                         if(p[pixel[5]] > cb) | 
 |                           if(p[pixel[6]] > cb) | 
 |                             if(p[pixel[7]] > cb) | 
 |                               if(p[pixel[8]] > cb) | 
 |                               {} | 
 |                               else | 
 |                                 continue; | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                       else | 
 |                         continue; | 
 |                   else | 
 |                     if(p[pixel[3]] > cb) | 
 |                       if(p[pixel[4]] > cb) | 
 |                         if(p[pixel[5]] > cb) | 
 |                           if(p[pixel[6]] > cb) | 
 |                             if(p[pixel[7]] > cb) | 
 |                               if(p[pixel[8]] > cb) | 
 |                               {} | 
 |                               else | 
 |                                 continue; | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                       else | 
 |                         continue; | 
 |                     else | 
 |                       continue; | 
 |                 else | 
 |                   continue; | 
 |               else | 
 |                 continue; | 
 |             else if(p[pixel[9]] < c_b) | 
 |               if(p[pixel[7]] < c_b) | 
 |                 if(p[pixel[8]] < c_b) | 
 |                   if(p[pixel[10]] < c_b) | 
 |                     if(p[pixel[6]] < c_b) | 
 |                       if(p[pixel[5]] < c_b) | 
 |                         if(p[pixel[4]] < c_b) | 
 |                           if(p[pixel[3]] < c_b) | 
 |                           {} | 
 |                           else | 
 |                             if(p[pixel[11]] < c_b) | 
 |                               if(p[pixel[12]] < c_b) | 
 |                               {} | 
 |                               else | 
 |                                 continue; | 
 |                             else | 
 |                               continue; | 
 |                         else | 
 |                           if(p[pixel[11]] < c_b) | 
 |                             if(p[pixel[12]] < c_b) | 
 |                               if(p[pixel[13]] < c_b) | 
 |                               {} | 
 |                               else | 
 |                                 continue; | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                       else | 
 |                         if(p[pixel[11]] < c_b) | 
 |                           if(p[pixel[12]] < c_b) | 
 |                             if(p[pixel[13]] < c_b) | 
 |                               if(p[pixel[14]] < c_b) | 
 |                               {} | 
 |                               else | 
 |                                 continue; | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                     else | 
 |                       if(p[pixel[11]] < c_b) | 
 |                         if(p[pixel[12]] < c_b) | 
 |                           if(p[pixel[13]] < c_b) | 
 |                             if(p[pixel[14]] < c_b) | 
 |                               if(p[pixel[15]] < c_b) | 
 |                               {} | 
 |                               else | 
 |                                 continue; | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                       else | 
 |                         continue; | 
 |                   else | 
 |                     continue; | 
 |                 else | 
 |                   continue; | 
 |               else | 
 |                 continue; | 
 |             else | 
 |               continue; | 
 |           else | 
 |             if(p[pixel[9]] > cb) | 
 |               if(p[pixel[10]] > cb) | 
 |                 if(p[pixel[11]] > cb) | 
 |                   if(p[pixel[12]] > cb) | 
 |                     if(p[pixel[13]] > cb) | 
 |                       if(p[pixel[14]] > cb) | 
 |                         if(p[pixel[15]] > cb) | 
 |                         {} | 
 |                         else | 
 |                           if(p[pixel[6]] > cb) | 
 |                             if(p[pixel[7]] > cb) | 
 |                               if(p[pixel[8]] > cb) | 
 |                               {} | 
 |                               else | 
 |                                 continue; | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                       else | 
 |                         if(p[pixel[5]] > cb) | 
 |                           if(p[pixel[6]] > cb) | 
 |                             if(p[pixel[7]] > cb) | 
 |                               if(p[pixel[8]] > cb) | 
 |                               {} | 
 |                               else | 
 |                                 continue; | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                     else | 
 |                       if(p[pixel[4]] > cb) | 
 |                         if(p[pixel[5]] > cb) | 
 |                           if(p[pixel[6]] > cb) | 
 |                             if(p[pixel[7]] > cb) | 
 |                               if(p[pixel[8]] > cb) | 
 |                               {} | 
 |                               else | 
 |                                 continue; | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                       else | 
 |                         continue; | 
 |                   else | 
 |                     if(p[pixel[3]] > cb) | 
 |                       if(p[pixel[4]] > cb) | 
 |                         if(p[pixel[5]] > cb) | 
 |                           if(p[pixel[6]] > cb) | 
 |                             if(p[pixel[7]] > cb) | 
 |                               if(p[pixel[8]] > cb) | 
 |                               {} | 
 |                               else | 
 |                                 continue; | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                       else | 
 |                         continue; | 
 |                     else | 
 |                       continue; | 
 |                 else | 
 |                   continue; | 
 |               else | 
 |                 continue; | 
 |             else if(p[pixel[9]] < c_b) | 
 |               if(p[pixel[7]] < c_b) | 
 |                 if(p[pixel[8]] < c_b) | 
 |                   if(p[pixel[10]] < c_b) | 
 |                     if(p[pixel[11]] < c_b) | 
 |                       if(p[pixel[6]] < c_b) | 
 |                         if(p[pixel[5]] < c_b) | 
 |                           if(p[pixel[4]] < c_b) | 
 |                             if(p[pixel[3]] < c_b) | 
 |                             {} | 
 |                             else | 
 |                               if(p[pixel[12]] < c_b) | 
 |                               {} | 
 |                               else | 
 |                                 continue; | 
 |                           else | 
 |                             if(p[pixel[12]] < c_b) | 
 |                               if(p[pixel[13]] < c_b) | 
 |                               {} | 
 |                               else | 
 |                                 continue; | 
 |                             else | 
 |                               continue; | 
 |                         else | 
 |                           if(p[pixel[12]] < c_b) | 
 |                             if(p[pixel[13]] < c_b) | 
 |                               if(p[pixel[14]] < c_b) | 
 |                               {} | 
 |                               else | 
 |                                 continue; | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                       else | 
 |                         if(p[pixel[12]] < c_b) | 
 |                           if(p[pixel[13]] < c_b) | 
 |                             if(p[pixel[14]] < c_b) | 
 |                               if(p[pixel[15]] < c_b) | 
 |                               {} | 
 |                               else | 
 |                                 continue; | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                     else | 
 |                       continue; | 
 |                   else | 
 |                     continue; | 
 |                 else | 
 |                   continue; | 
 |               else | 
 |                 continue; | 
 |             else | 
 |               continue; | 
 |         else if(p[pixel[1]] < c_b) | 
 |           if(p[pixel[8]] > cb) | 
 |             if(p[pixel[9]] > cb) | 
 |               if(p[pixel[10]] > cb) | 
 |                 if(p[pixel[11]] > cb) | 
 |                   if(p[pixel[12]] > cb) | 
 |                     if(p[pixel[13]] > cb) | 
 |                       if(p[pixel[14]] > cb) | 
 |                         if(p[pixel[15]] > cb) | 
 |                         {} | 
 |                         else | 
 |                           if(p[pixel[6]] > cb) | 
 |                             if(p[pixel[7]] > cb) | 
 |                             {} | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                       else | 
 |                         if(p[pixel[5]] > cb) | 
 |                           if(p[pixel[6]] > cb) | 
 |                             if(p[pixel[7]] > cb) | 
 |                             {} | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                     else | 
 |                       if(p[pixel[4]] > cb) | 
 |                         if(p[pixel[5]] > cb) | 
 |                           if(p[pixel[6]] > cb) | 
 |                             if(p[pixel[7]] > cb) | 
 |                             {} | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                       else | 
 |                         continue; | 
 |                   else | 
 |                     if(p[pixel[3]] > cb) | 
 |                       if(p[pixel[4]] > cb) | 
 |                         if(p[pixel[5]] > cb) | 
 |                           if(p[pixel[6]] > cb) | 
 |                             if(p[pixel[7]] > cb) | 
 |                             {} | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                       else | 
 |                         continue; | 
 |                     else | 
 |                       continue; | 
 |                 else | 
 |                   if(p[pixel[2]] > cb) | 
 |                     if(p[pixel[3]] > cb) | 
 |                       if(p[pixel[4]] > cb) | 
 |                         if(p[pixel[5]] > cb) | 
 |                           if(p[pixel[6]] > cb) | 
 |                             if(p[pixel[7]] > cb) | 
 |                             {} | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                       else | 
 |                         continue; | 
 |                     else | 
 |                       continue; | 
 |                   else | 
 |                     continue; | 
 |               else | 
 |                 continue; | 
 |             else | 
 |               continue; | 
 |           else if(p[pixel[8]] < c_b) | 
 |             if(p[pixel[7]] < c_b) | 
 |               if(p[pixel[9]] < c_b) | 
 |                 if(p[pixel[6]] < c_b) | 
 |                   if(p[pixel[5]] < c_b) | 
 |                     if(p[pixel[4]] < c_b) | 
 |                       if(p[pixel[3]] < c_b) | 
 |                         if(p[pixel[2]] < c_b) | 
 |                         {} | 
 |                         else | 
 |                           if(p[pixel[10]] < c_b) | 
 |                             if(p[pixel[11]] < c_b) | 
 |                             {} | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                       else | 
 |                         if(p[pixel[10]] < c_b) | 
 |                           if(p[pixel[11]] < c_b) | 
 |                             if(p[pixel[12]] < c_b) | 
 |                             {} | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                     else | 
 |                       if(p[pixel[10]] < c_b) | 
 |                         if(p[pixel[11]] < c_b) | 
 |                           if(p[pixel[12]] < c_b) | 
 |                             if(p[pixel[13]] < c_b) | 
 |                             {} | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                       else | 
 |                         continue; | 
 |                   else | 
 |                     if(p[pixel[10]] < c_b) | 
 |                       if(p[pixel[11]] < c_b) | 
 |                         if(p[pixel[12]] < c_b) | 
 |                           if(p[pixel[13]] < c_b) | 
 |                             if(p[pixel[14]] < c_b) | 
 |                             {} | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                       else | 
 |                         continue; | 
 |                     else | 
 |                       continue; | 
 |                 else | 
 |                   if(p[pixel[10]] < c_b) | 
 |                     if(p[pixel[11]] < c_b) | 
 |                       if(p[pixel[12]] < c_b) | 
 |                         if(p[pixel[13]] < c_b) | 
 |                           if(p[pixel[14]] < c_b) | 
 |                             if(p[pixel[15]] < c_b) | 
 |                             {} | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                       else | 
 |                         continue; | 
 |                     else | 
 |                       continue; | 
 |                   else | 
 |                     continue; | 
 |               else | 
 |                 continue; | 
 |             else | 
 |               continue; | 
 |           else | 
 |             continue; | 
 |         else | 
 |           if(p[pixel[8]] > cb) | 
 |             if(p[pixel[9]] > cb) | 
 |               if(p[pixel[10]] > cb) | 
 |                 if(p[pixel[11]] > cb) | 
 |                   if(p[pixel[12]] > cb) | 
 |                     if(p[pixel[13]] > cb) | 
 |                       if(p[pixel[14]] > cb) | 
 |                         if(p[pixel[15]] > cb) | 
 |                         {} | 
 |                         else | 
 |                           if(p[pixel[6]] > cb) | 
 |                             if(p[pixel[7]] > cb) | 
 |                             {} | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                       else | 
 |                         if(p[pixel[5]] > cb) | 
 |                           if(p[pixel[6]] > cb) | 
 |                             if(p[pixel[7]] > cb) | 
 |                             {} | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                     else | 
 |                       if(p[pixel[4]] > cb) | 
 |                         if(p[pixel[5]] > cb) | 
 |                           if(p[pixel[6]] > cb) | 
 |                             if(p[pixel[7]] > cb) | 
 |                             {} | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                       else | 
 |                         continue; | 
 |                   else | 
 |                     if(p[pixel[3]] > cb) | 
 |                       if(p[pixel[4]] > cb) | 
 |                         if(p[pixel[5]] > cb) | 
 |                           if(p[pixel[6]] > cb) | 
 |                             if(p[pixel[7]] > cb) | 
 |                             {} | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                       else | 
 |                         continue; | 
 |                     else | 
 |                       continue; | 
 |                 else | 
 |                   if(p[pixel[2]] > cb) | 
 |                     if(p[pixel[3]] > cb) | 
 |                       if(p[pixel[4]] > cb) | 
 |                         if(p[pixel[5]] > cb) | 
 |                           if(p[pixel[6]] > cb) | 
 |                             if(p[pixel[7]] > cb) | 
 |                             {} | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                       else | 
 |                         continue; | 
 |                     else | 
 |                       continue; | 
 |                   else | 
 |                     continue; | 
 |               else | 
 |                 continue; | 
 |             else | 
 |               continue; | 
 |           else if(p[pixel[8]] < c_b) | 
 |             if(p[pixel[7]] < c_b) | 
 |               if(p[pixel[9]] < c_b) | 
 |                 if(p[pixel[10]] < c_b) | 
 |                   if(p[pixel[6]] < c_b) | 
 |                     if(p[pixel[5]] < c_b) | 
 |                       if(p[pixel[4]] < c_b) | 
 |                         if(p[pixel[3]] < c_b) | 
 |                           if(p[pixel[2]] < c_b) | 
 |                           {} | 
 |                           else | 
 |                             if(p[pixel[11]] < c_b) | 
 |                             {} | 
 |                             else | 
 |                               continue; | 
 |                         else | 
 |                           if(p[pixel[11]] < c_b) | 
 |                             if(p[pixel[12]] < c_b) | 
 |                             {} | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                       else | 
 |                         if(p[pixel[11]] < c_b) | 
 |                           if(p[pixel[12]] < c_b) | 
 |                             if(p[pixel[13]] < c_b) | 
 |                             {} | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                     else | 
 |                       if(p[pixel[11]] < c_b) | 
 |                         if(p[pixel[12]] < c_b) | 
 |                           if(p[pixel[13]] < c_b) | 
 |                             if(p[pixel[14]] < c_b) | 
 |                             {} | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                       else | 
 |                         continue; | 
 |                   else | 
 |                     if(p[pixel[11]] < c_b) | 
 |                       if(p[pixel[12]] < c_b) | 
 |                         if(p[pixel[13]] < c_b) | 
 |                           if(p[pixel[14]] < c_b) | 
 |                             if(p[pixel[15]] < c_b) | 
 |                             {} | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                       else | 
 |                         continue; | 
 |                     else | 
 |                       continue; | 
 |                 else | 
 |                   continue; | 
 |               else | 
 |                 continue; | 
 |             else | 
 |               continue; | 
 |           else | 
 |             continue; | 
 |       else if(p[pixel[0]] < c_b) | 
 |         if(p[pixel[1]] > cb) | 
 |           if(p[pixel[8]] > cb) | 
 |             if(p[pixel[7]] > cb) | 
 |               if(p[pixel[9]] > cb) | 
 |                 if(p[pixel[6]] > cb) | 
 |                   if(p[pixel[5]] > cb) | 
 |                     if(p[pixel[4]] > cb) | 
 |                       if(p[pixel[3]] > cb) | 
 |                         if(p[pixel[2]] > cb) | 
 |                         {} | 
 |                         else | 
 |                           if(p[pixel[10]] > cb) | 
 |                             if(p[pixel[11]] > cb) | 
 |                             {} | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                       else | 
 |                         if(p[pixel[10]] > cb) | 
 |                           if(p[pixel[11]] > cb) | 
 |                             if(p[pixel[12]] > cb) | 
 |                             {} | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                     else | 
 |                       if(p[pixel[10]] > cb) | 
 |                         if(p[pixel[11]] > cb) | 
 |                           if(p[pixel[12]] > cb) | 
 |                             if(p[pixel[13]] > cb) | 
 |                             {} | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                       else | 
 |                         continue; | 
 |                   else | 
 |                     if(p[pixel[10]] > cb) | 
 |                       if(p[pixel[11]] > cb) | 
 |                         if(p[pixel[12]] > cb) | 
 |                           if(p[pixel[13]] > cb) | 
 |                             if(p[pixel[14]] > cb) | 
 |                             {} | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                       else | 
 |                         continue; | 
 |                     else | 
 |                       continue; | 
 |                 else | 
 |                   if(p[pixel[10]] > cb) | 
 |                     if(p[pixel[11]] > cb) | 
 |                       if(p[pixel[12]] > cb) | 
 |                         if(p[pixel[13]] > cb) | 
 |                           if(p[pixel[14]] > cb) | 
 |                             if(p[pixel[15]] > cb) | 
 |                             {} | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                       else | 
 |                         continue; | 
 |                     else | 
 |                       continue; | 
 |                   else | 
 |                     continue; | 
 |               else | 
 |                 continue; | 
 |             else | 
 |               continue; | 
 |           else if(p[pixel[8]] < c_b) | 
 |             if(p[pixel[9]] < c_b) | 
 |               if(p[pixel[10]] < c_b) | 
 |                 if(p[pixel[11]] < c_b) | 
 |                   if(p[pixel[12]] < c_b) | 
 |                     if(p[pixel[13]] < c_b) | 
 |                       if(p[pixel[14]] < c_b) | 
 |                         if(p[pixel[15]] < c_b) | 
 |                         {} | 
 |                         else | 
 |                           if(p[pixel[6]] < c_b) | 
 |                             if(p[pixel[7]] < c_b) | 
 |                             {} | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                       else | 
 |                         if(p[pixel[5]] < c_b) | 
 |                           if(p[pixel[6]] < c_b) | 
 |                             if(p[pixel[7]] < c_b) | 
 |                             {} | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                     else | 
 |                       if(p[pixel[4]] < c_b) | 
 |                         if(p[pixel[5]] < c_b) | 
 |                           if(p[pixel[6]] < c_b) | 
 |                             if(p[pixel[7]] < c_b) | 
 |                             {} | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                       else | 
 |                         continue; | 
 |                   else | 
 |                     if(p[pixel[3]] < c_b) | 
 |                       if(p[pixel[4]] < c_b) | 
 |                         if(p[pixel[5]] < c_b) | 
 |                           if(p[pixel[6]] < c_b) | 
 |                             if(p[pixel[7]] < c_b) | 
 |                             {} | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                       else | 
 |                         continue; | 
 |                     else | 
 |                       continue; | 
 |                 else | 
 |                   if(p[pixel[2]] < c_b) | 
 |                     if(p[pixel[3]] < c_b) | 
 |                       if(p[pixel[4]] < c_b) | 
 |                         if(p[pixel[5]] < c_b) | 
 |                           if(p[pixel[6]] < c_b) | 
 |                             if(p[pixel[7]] < c_b) | 
 |                             {} | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                       else | 
 |                         continue; | 
 |                     else | 
 |                       continue; | 
 |                   else | 
 |                     continue; | 
 |               else | 
 |                 continue; | 
 |             else | 
 |               continue; | 
 |           else | 
 |             continue; | 
 |         else if(p[pixel[1]] < c_b) | 
 |           if(p[pixel[2]] > cb) | 
 |             if(p[pixel[9]] > cb) | 
 |               if(p[pixel[7]] > cb) | 
 |                 if(p[pixel[8]] > cb) | 
 |                   if(p[pixel[10]] > cb) | 
 |                     if(p[pixel[6]] > cb) | 
 |                       if(p[pixel[5]] > cb) | 
 |                         if(p[pixel[4]] > cb) | 
 |                           if(p[pixel[3]] > cb) | 
 |                           {} | 
 |                           else | 
 |                             if(p[pixel[11]] > cb) | 
 |                               if(p[pixel[12]] > cb) | 
 |                               {} | 
 |                               else | 
 |                                 continue; | 
 |                             else | 
 |                               continue; | 
 |                         else | 
 |                           if(p[pixel[11]] > cb) | 
 |                             if(p[pixel[12]] > cb) | 
 |                               if(p[pixel[13]] > cb) | 
 |                               {} | 
 |                               else | 
 |                                 continue; | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                       else | 
 |                         if(p[pixel[11]] > cb) | 
 |                           if(p[pixel[12]] > cb) | 
 |                             if(p[pixel[13]] > cb) | 
 |                               if(p[pixel[14]] > cb) | 
 |                               {} | 
 |                               else | 
 |                                 continue; | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                     else | 
 |                       if(p[pixel[11]] > cb) | 
 |                         if(p[pixel[12]] > cb) | 
 |                           if(p[pixel[13]] > cb) | 
 |                             if(p[pixel[14]] > cb) | 
 |                               if(p[pixel[15]] > cb) | 
 |                               {} | 
 |                               else | 
 |                                 continue; | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                       else | 
 |                         continue; | 
 |                   else | 
 |                     continue; | 
 |                 else | 
 |                   continue; | 
 |               else | 
 |                 continue; | 
 |             else if(p[pixel[9]] < c_b) | 
 |               if(p[pixel[10]] < c_b) | 
 |                 if(p[pixel[11]] < c_b) | 
 |                   if(p[pixel[12]] < c_b) | 
 |                     if(p[pixel[13]] < c_b) | 
 |                       if(p[pixel[14]] < c_b) | 
 |                         if(p[pixel[15]] < c_b) | 
 |                         {} | 
 |                         else | 
 |                           if(p[pixel[6]] < c_b) | 
 |                             if(p[pixel[7]] < c_b) | 
 |                               if(p[pixel[8]] < c_b) | 
 |                               {} | 
 |                               else | 
 |                                 continue; | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                       else | 
 |                         if(p[pixel[5]] < c_b) | 
 |                           if(p[pixel[6]] < c_b) | 
 |                             if(p[pixel[7]] < c_b) | 
 |                               if(p[pixel[8]] < c_b) | 
 |                               {} | 
 |                               else | 
 |                                 continue; | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                     else | 
 |                       if(p[pixel[4]] < c_b) | 
 |                         if(p[pixel[5]] < c_b) | 
 |                           if(p[pixel[6]] < c_b) | 
 |                             if(p[pixel[7]] < c_b) | 
 |                               if(p[pixel[8]] < c_b) | 
 |                               {} | 
 |                               else | 
 |                                 continue; | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                       else | 
 |                         continue; | 
 |                   else | 
 |                     if(p[pixel[3]] < c_b) | 
 |                       if(p[pixel[4]] < c_b) | 
 |                         if(p[pixel[5]] < c_b) | 
 |                           if(p[pixel[6]] < c_b) | 
 |                             if(p[pixel[7]] < c_b) | 
 |                               if(p[pixel[8]] < c_b) | 
 |                               {} | 
 |                               else | 
 |                                 continue; | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                       else | 
 |                         continue; | 
 |                     else | 
 |                       continue; | 
 |                 else | 
 |                   continue; | 
 |               else | 
 |                 continue; | 
 |             else | 
 |               continue; | 
 |           else if(p[pixel[2]] < c_b) | 
 |             if(p[pixel[3]] > cb) | 
 |               if(p[pixel[10]] > cb) | 
 |                 if(p[pixel[7]] > cb) | 
 |                   if(p[pixel[8]] > cb) | 
 |                     if(p[pixel[9]] > cb) | 
 |                       if(p[pixel[11]] > cb) | 
 |                         if(p[pixel[6]] > cb) | 
 |                           if(p[pixel[5]] > cb) | 
 |                             if(p[pixel[4]] > cb) | 
 |                             {} | 
 |                             else | 
 |                               if(p[pixel[12]] > cb) | 
 |                                 if(p[pixel[13]] > cb) | 
 |                                 {} | 
 |                                 else | 
 |                                   continue; | 
 |                               else | 
 |                                 continue; | 
 |                           else | 
 |                             if(p[pixel[12]] > cb) | 
 |                               if(p[pixel[13]] > cb) | 
 |                                 if(p[pixel[14]] > cb) | 
 |                                 {} | 
 |                                 else | 
 |                                   continue; | 
 |                               else | 
 |                                 continue; | 
 |                             else | 
 |                               continue; | 
 |                         else | 
 |                           if(p[pixel[12]] > cb) | 
 |                             if(p[pixel[13]] > cb) | 
 |                               if(p[pixel[14]] > cb) | 
 |                                 if(p[pixel[15]] > cb) | 
 |                                 {} | 
 |                                 else | 
 |                                   continue; | 
 |                               else | 
 |                                 continue; | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                       else | 
 |                         continue; | 
 |                     else | 
 |                       continue; | 
 |                   else | 
 |                     continue; | 
 |                 else | 
 |                   continue; | 
 |               else if(p[pixel[10]] < c_b) | 
 |                 if(p[pixel[11]] < c_b) | 
 |                   if(p[pixel[12]] < c_b) | 
 |                     if(p[pixel[13]] < c_b) | 
 |                       if(p[pixel[14]] < c_b) | 
 |                         if(p[pixel[15]] < c_b) | 
 |                         {} | 
 |                         else | 
 |                           if(p[pixel[6]] < c_b) | 
 |                             if(p[pixel[7]] < c_b) | 
 |                               if(p[pixel[8]] < c_b) | 
 |                                 if(p[pixel[9]] < c_b) | 
 |                                 {} | 
 |                                 else | 
 |                                   continue; | 
 |                               else | 
 |                                 continue; | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                       else | 
 |                         if(p[pixel[5]] < c_b) | 
 |                           if(p[pixel[6]] < c_b) | 
 |                             if(p[pixel[7]] < c_b) | 
 |                               if(p[pixel[8]] < c_b) | 
 |                                 if(p[pixel[9]] < c_b) | 
 |                                 {} | 
 |                                 else | 
 |                                   continue; | 
 |                               else | 
 |                                 continue; | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                     else | 
 |                       if(p[pixel[4]] < c_b) | 
 |                         if(p[pixel[5]] < c_b) | 
 |                           if(p[pixel[6]] < c_b) | 
 |                             if(p[pixel[7]] < c_b) | 
 |                               if(p[pixel[8]] < c_b) | 
 |                                 if(p[pixel[9]] < c_b) | 
 |                                 {} | 
 |                                 else | 
 |                                   continue; | 
 |                               else | 
 |                                 continue; | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                       else | 
 |                         continue; | 
 |                   else | 
 |                     continue; | 
 |                 else | 
 |                   continue; | 
 |               else | 
 |                 continue; | 
 |             else if(p[pixel[3]] < c_b) | 
 |               if(p[pixel[4]] > cb) | 
 |                 if(p[pixel[13]] > cb) | 
 |                   if(p[pixel[7]] > cb) | 
 |                     if(p[pixel[8]] > cb) | 
 |                       if(p[pixel[9]] > cb) | 
 |                         if(p[pixel[10]] > cb) | 
 |                           if(p[pixel[11]] > cb) | 
 |                             if(p[pixel[12]] > cb) | 
 |                               if(p[pixel[6]] > cb) | 
 |                                 if(p[pixel[5]] > cb) | 
 |                                 {} | 
 |                                 else | 
 |                                   if(p[pixel[14]] > cb) | 
 |                                   {} | 
 |                                   else | 
 |                                     continue; | 
 |                               else | 
 |                                 if(p[pixel[14]] > cb) | 
 |                                   if(p[pixel[15]] > cb) | 
 |                                   {} | 
 |                                   else | 
 |                                     continue; | 
 |                                 else | 
 |                                   continue; | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                       else | 
 |                         continue; | 
 |                     else | 
 |                       continue; | 
 |                   else | 
 |                     continue; | 
 |                 else if(p[pixel[13]] < c_b) | 
 |                   if(p[pixel[11]] > cb) | 
 |                     if(p[pixel[5]] > cb) | 
 |                       if(p[pixel[6]] > cb) | 
 |                         if(p[pixel[7]] > cb) | 
 |                           if(p[pixel[8]] > cb) | 
 |                             if(p[pixel[9]] > cb) | 
 |                               if(p[pixel[10]] > cb) | 
 |                                 if(p[pixel[12]] > cb) | 
 |                                 {} | 
 |                                 else | 
 |                                   continue; | 
 |                               else | 
 |                                 continue; | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                       else | 
 |                         continue; | 
 |                     else | 
 |                       continue; | 
 |                   else if(p[pixel[11]] < c_b) | 
 |                     if(p[pixel[12]] < c_b) | 
 |                       if(p[pixel[14]] < c_b) | 
 |                         if(p[pixel[15]] < c_b) | 
 |                         {} | 
 |                         else | 
 |                           if(p[pixel[6]] < c_b) | 
 |                             if(p[pixel[7]] < c_b) | 
 |                               if(p[pixel[8]] < c_b) | 
 |                                 if(p[pixel[9]] < c_b) | 
 |                                   if(p[pixel[10]] < c_b) | 
 |                                   {} | 
 |                                   else | 
 |                                     continue; | 
 |                                 else | 
 |                                   continue; | 
 |                               else | 
 |                                 continue; | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                       else | 
 |                         if(p[pixel[5]] < c_b) | 
 |                           if(p[pixel[6]] < c_b) | 
 |                             if(p[pixel[7]] < c_b) | 
 |                               if(p[pixel[8]] < c_b) | 
 |                                 if(p[pixel[9]] < c_b) | 
 |                                   if(p[pixel[10]] < c_b) | 
 |                                   {} | 
 |                                   else | 
 |                                     continue; | 
 |                                 else | 
 |                                   continue; | 
 |                               else | 
 |                                 continue; | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                     else | 
 |                       continue; | 
 |                   else | 
 |                     continue; | 
 |                 else | 
 |                   if(p[pixel[5]] > cb) | 
 |                     if(p[pixel[6]] > cb) | 
 |                       if(p[pixel[7]] > cb) | 
 |                         if(p[pixel[8]] > cb) | 
 |                           if(p[pixel[9]] > cb) | 
 |                             if(p[pixel[10]] > cb) | 
 |                               if(p[pixel[11]] > cb) | 
 |                                 if(p[pixel[12]] > cb) | 
 |                                 {} | 
 |                                 else | 
 |                                   continue; | 
 |                               else | 
 |                                 continue; | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                       else | 
 |                         continue; | 
 |                     else | 
 |                       continue; | 
 |                   else | 
 |                     continue; | 
 |               else if(p[pixel[4]] < c_b) | 
 |                 if(p[pixel[5]] > cb) | 
 |                   if(p[pixel[14]] > cb) | 
 |                     if(p[pixel[7]] > cb) | 
 |                       if(p[pixel[8]] > cb) | 
 |                         if(p[pixel[9]] > cb) | 
 |                           if(p[pixel[10]] > cb) | 
 |                             if(p[pixel[11]] > cb) | 
 |                               if(p[pixel[12]] > cb) | 
 |                                 if(p[pixel[13]] > cb) | 
 |                                   if(p[pixel[6]] > cb) | 
 |                                   {} | 
 |                                   else | 
 |                                     if(p[pixel[15]] > cb) | 
 |                                     {} | 
 |                                     else | 
 |                                       continue; | 
 |                                 else | 
 |                                   continue; | 
 |                               else | 
 |                                 continue; | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                       else | 
 |                         continue; | 
 |                     else | 
 |                       continue; | 
 |                   else if(p[pixel[14]] < c_b) | 
 |                     if(p[pixel[12]] > cb) | 
 |                       if(p[pixel[6]] > cb) | 
 |                         if(p[pixel[7]] > cb) | 
 |                           if(p[pixel[8]] > cb) | 
 |                             if(p[pixel[9]] > cb) | 
 |                               if(p[pixel[10]] > cb) | 
 |                                 if(p[pixel[11]] > cb) | 
 |                                   if(p[pixel[13]] > cb) | 
 |                                   {} | 
 |                                   else | 
 |                                     continue; | 
 |                                 else | 
 |                                   continue; | 
 |                               else | 
 |                                 continue; | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                       else | 
 |                         continue; | 
 |                     else if(p[pixel[12]] < c_b) | 
 |                       if(p[pixel[13]] < c_b) | 
 |                         if(p[pixel[15]] < c_b) | 
 |                         {} | 
 |                         else | 
 |                           if(p[pixel[6]] < c_b) | 
 |                             if(p[pixel[7]] < c_b) | 
 |                               if(p[pixel[8]] < c_b) | 
 |                                 if(p[pixel[9]] < c_b) | 
 |                                   if(p[pixel[10]] < c_b) | 
 |                                     if(p[pixel[11]] < c_b) | 
 |                                     {} | 
 |                                     else | 
 |                                       continue; | 
 |                                   else | 
 |                                     continue; | 
 |                                 else | 
 |                                   continue; | 
 |                               else | 
 |                                 continue; | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                       else | 
 |                         continue; | 
 |                     else | 
 |                       continue; | 
 |                   else | 
 |                     if(p[pixel[6]] > cb) | 
 |                       if(p[pixel[7]] > cb) | 
 |                         if(p[pixel[8]] > cb) | 
 |                           if(p[pixel[9]] > cb) | 
 |                             if(p[pixel[10]] > cb) | 
 |                               if(p[pixel[11]] > cb) | 
 |                                 if(p[pixel[12]] > cb) | 
 |                                   if(p[pixel[13]] > cb) | 
 |                                   {} | 
 |                                   else | 
 |                                     continue; | 
 |                                 else | 
 |                                   continue; | 
 |                               else | 
 |                                 continue; | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                       else | 
 |                         continue; | 
 |                     else | 
 |                       continue; | 
 |                 else if(p[pixel[5]] < c_b) | 
 |                   if(p[pixel[6]] > cb) | 
 |                     if(p[pixel[15]] < c_b) | 
 |                       if(p[pixel[13]] > cb) | 
 |                         if(p[pixel[7]] > cb) | 
 |                           if(p[pixel[8]] > cb) | 
 |                             if(p[pixel[9]] > cb) | 
 |                               if(p[pixel[10]] > cb) | 
 |                                 if(p[pixel[11]] > cb) | 
 |                                   if(p[pixel[12]] > cb) | 
 |                                     if(p[pixel[14]] > cb) | 
 |                                     {} | 
 |                                     else | 
 |                                       continue; | 
 |                                   else | 
 |                                     continue; | 
 |                                 else | 
 |                                   continue; | 
 |                               else | 
 |                                 continue; | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                       else if(p[pixel[13]] < c_b) | 
 |                         if(p[pixel[14]] < c_b) | 
 |                         {} | 
 |                         else | 
 |                           continue; | 
 |                       else | 
 |                         continue; | 
 |                     else | 
 |                       if(p[pixel[7]] > cb) | 
 |                         if(p[pixel[8]] > cb) | 
 |                           if(p[pixel[9]] > cb) | 
 |                             if(p[pixel[10]] > cb) | 
 |                               if(p[pixel[11]] > cb) | 
 |                                 if(p[pixel[12]] > cb) | 
 |                                   if(p[pixel[13]] > cb) | 
 |                                     if(p[pixel[14]] > cb) | 
 |                                     {} | 
 |                                     else | 
 |                                       continue; | 
 |                                   else | 
 |                                     continue; | 
 |                                 else | 
 |                                   continue; | 
 |                               else | 
 |                                 continue; | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                       else | 
 |                         continue; | 
 |                   else if(p[pixel[6]] < c_b) | 
 |                     if(p[pixel[7]] > cb) | 
 |                       if(p[pixel[14]] > cb) | 
 |                         if(p[pixel[8]] > cb) | 
 |                           if(p[pixel[9]] > cb) | 
 |                             if(p[pixel[10]] > cb) | 
 |                               if(p[pixel[11]] > cb) | 
 |                                 if(p[pixel[12]] > cb) | 
 |                                   if(p[pixel[13]] > cb) | 
 |                                     if(p[pixel[15]] > cb) | 
 |                                     {} | 
 |                                     else | 
 |                                       continue; | 
 |                                   else | 
 |                                     continue; | 
 |                                 else | 
 |                                   continue; | 
 |                               else | 
 |                                 continue; | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                       else if(p[pixel[14]] < c_b) | 
 |                         if(p[pixel[15]] < c_b) | 
 |                         {} | 
 |                         else | 
 |                           continue; | 
 |                       else | 
 |                         continue; | 
 |                     else if(p[pixel[7]] < c_b) | 
 |                       if(p[pixel[8]] < c_b) | 
 |                       {} | 
 |                       else | 
 |                         if(p[pixel[15]] < c_b) | 
 |                         {} | 
 |                         else | 
 |                           continue; | 
 |                     else | 
 |                       if(p[pixel[14]] < c_b) | 
 |                         if(p[pixel[15]] < c_b) | 
 |                         {} | 
 |                         else | 
 |                           continue; | 
 |                       else | 
 |                         continue; | 
 |                   else | 
 |                     if(p[pixel[13]] > cb) | 
 |                       if(p[pixel[7]] > cb) | 
 |                         if(p[pixel[8]] > cb) | 
 |                           if(p[pixel[9]] > cb) | 
 |                             if(p[pixel[10]] > cb) | 
 |                               if(p[pixel[11]] > cb) | 
 |                                 if(p[pixel[12]] > cb) | 
 |                                   if(p[pixel[14]] > cb) | 
 |                                     if(p[pixel[15]] > cb) | 
 |                                     {} | 
 |                                     else | 
 |                                       continue; | 
 |                                   else | 
 |                                     continue; | 
 |                                 else | 
 |                                   continue; | 
 |                               else | 
 |                                 continue; | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                       else | 
 |                         continue; | 
 |                     else if(p[pixel[13]] < c_b) | 
 |                       if(p[pixel[14]] < c_b) | 
 |                         if(p[pixel[15]] < c_b) | 
 |                         {} | 
 |                         else | 
 |                           continue; | 
 |                       else | 
 |                         continue; | 
 |                     else | 
 |                       continue; | 
 |                 else | 
 |                   if(p[pixel[12]] > cb) | 
 |                     if(p[pixel[7]] > cb) | 
 |                       if(p[pixel[8]] > cb) | 
 |                         if(p[pixel[9]] > cb) | 
 |                           if(p[pixel[10]] > cb) | 
 |                             if(p[pixel[11]] > cb) | 
 |                               if(p[pixel[13]] > cb) | 
 |                                 if(p[pixel[14]] > cb) | 
 |                                   if(p[pixel[6]] > cb) | 
 |                                   {} | 
 |                                   else | 
 |                                     if(p[pixel[15]] > cb) | 
 |                                     {} | 
 |                                     else | 
 |                                       continue; | 
 |                                 else | 
 |                                   continue; | 
 |                               else | 
 |                                 continue; | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                       else | 
 |                         continue; | 
 |                     else | 
 |                       continue; | 
 |                   else if(p[pixel[12]] < c_b) | 
 |                     if(p[pixel[13]] < c_b) | 
 |                       if(p[pixel[14]] < c_b) | 
 |                         if(p[pixel[15]] < c_b) | 
 |                         {} | 
 |                         else | 
 |                           if(p[pixel[6]] < c_b) | 
 |                             if(p[pixel[7]] < c_b) | 
 |                               if(p[pixel[8]] < c_b) | 
 |                                 if(p[pixel[9]] < c_b) | 
 |                                   if(p[pixel[10]] < c_b) | 
 |                                     if(p[pixel[11]] < c_b) | 
 |                                     {} | 
 |                                     else | 
 |                                       continue; | 
 |                                   else | 
 |                                     continue; | 
 |                                 else | 
 |                                   continue; | 
 |                               else | 
 |                                 continue; | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                       else | 
 |                         continue; | 
 |                     else | 
 |                       continue; | 
 |                   else | 
 |                     continue; | 
 |               else | 
 |                 if(p[pixel[11]] > cb) | 
 |                   if(p[pixel[7]] > cb) | 
 |                     if(p[pixel[8]] > cb) | 
 |                       if(p[pixel[9]] > cb) | 
 |                         if(p[pixel[10]] > cb) | 
 |                           if(p[pixel[12]] > cb) | 
 |                             if(p[pixel[13]] > cb) | 
 |                               if(p[pixel[6]] > cb) | 
 |                                 if(p[pixel[5]] > cb) | 
 |                                 {} | 
 |                                 else | 
 |                                   if(p[pixel[14]] > cb) | 
 |                                   {} | 
 |                                   else | 
 |                                     continue; | 
 |                               else | 
 |                                 if(p[pixel[14]] > cb) | 
 |                                   if(p[pixel[15]] > cb) | 
 |                                   {} | 
 |                                   else | 
 |                                     continue; | 
 |                                 else | 
 |                                   continue; | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                       else | 
 |                         continue; | 
 |                     else | 
 |                       continue; | 
 |                   else | 
 |                     continue; | 
 |                 else if(p[pixel[11]] < c_b) | 
 |                   if(p[pixel[12]] < c_b) | 
 |                     if(p[pixel[13]] < c_b) | 
 |                       if(p[pixel[14]] < c_b) | 
 |                         if(p[pixel[15]] < c_b) | 
 |                         {} | 
 |                         else | 
 |                           if(p[pixel[6]] < c_b) | 
 |                             if(p[pixel[7]] < c_b) | 
 |                               if(p[pixel[8]] < c_b) | 
 |                                 if(p[pixel[9]] < c_b) | 
 |                                   if(p[pixel[10]] < c_b) | 
 |                                   {} | 
 |                                   else | 
 |                                     continue; | 
 |                                 else | 
 |                                   continue; | 
 |                               else | 
 |                                 continue; | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                       else | 
 |                         if(p[pixel[5]] < c_b) | 
 |                           if(p[pixel[6]] < c_b) | 
 |                             if(p[pixel[7]] < c_b) | 
 |                               if(p[pixel[8]] < c_b) | 
 |                                 if(p[pixel[9]] < c_b) | 
 |                                   if(p[pixel[10]] < c_b) | 
 |                                   {} | 
 |                                   else | 
 |                                     continue; | 
 |                                 else | 
 |                                   continue; | 
 |                               else | 
 |                                 continue; | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                     else | 
 |                       continue; | 
 |                   else | 
 |                     continue; | 
 |                 else | 
 |                   continue; | 
 |             else | 
 |               if(p[pixel[10]] > cb) | 
 |                 if(p[pixel[7]] > cb) | 
 |                   if(p[pixel[8]] > cb) | 
 |                     if(p[pixel[9]] > cb) | 
 |                       if(p[pixel[11]] > cb) | 
 |                         if(p[pixel[12]] > cb) | 
 |                           if(p[pixel[6]] > cb) | 
 |                             if(p[pixel[5]] > cb) | 
 |                               if(p[pixel[4]] > cb) | 
 |                               {} | 
 |                               else | 
 |                                 if(p[pixel[13]] > cb) | 
 |                                 {} | 
 |                                 else | 
 |                                   continue; | 
 |                             else | 
 |                               if(p[pixel[13]] > cb) | 
 |                                 if(p[pixel[14]] > cb) | 
 |                                 {} | 
 |                                 else | 
 |                                   continue; | 
 |                               else | 
 |                                 continue; | 
 |                           else | 
 |                             if(p[pixel[13]] > cb) | 
 |                               if(p[pixel[14]] > cb) | 
 |                                 if(p[pixel[15]] > cb) | 
 |                                 {} | 
 |                                 else | 
 |                                   continue; | 
 |                               else | 
 |                                 continue; | 
 |                             else | 
 |                               continue; | 
 |                         else | 
 |                           continue; | 
 |                       else | 
 |                         continue; | 
 |                     else | 
 |                       continue; | 
 |                   else | 
 |                     continue; | 
 |                 else | 
 |                   continue; | 
 |               else if(p[pixel[10]] < c_b) | 
 |                 if(p[pixel[11]] < c_b) | 
 |                   if(p[pixel[12]] < c_b) | 
 |                     if(p[pixel[13]] < c_b) | 
 |                       if(p[pixel[14]] < c_b) | 
 |                         if(p[pixel[15]] < c_b) | 
 |                         {} | 
 |                         else | 
 |                           if(p[pixel[6]] < c_b) | 
 |                             if(p[pixel[7]] < c_b) | 
 |                               if(p[pixel[8]] < c_b) | 
 |                                 if(p[pixel[9]] < c_b) | 
 |                                 {} | 
 |                                 else | 
 |                                   continue; | 
 |                               else | 
 |                                 continue; | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                       else | 
 |                         if(p[pixel[5]] < c_b) | 
 |                           if(p[pixel[6]] < c_b) | 
 |                             if(p[pixel[7]] < c_b) | 
 |                               if(p[pixel[8]] < c_b) | 
 |                                 if(p[pixel[9]] < c_b) | 
 |                                 {} | 
 |                                 else | 
 |                                   continue; | 
 |                               else | 
 |                                 continue; | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                     else | 
 |                       if(p[pixel[4]] < c_b) | 
 |                         if(p[pixel[5]] < c_b) | 
 |                           if(p[pixel[6]] < c_b) | 
 |                             if(p[pixel[7]] < c_b) | 
 |                               if(p[pixel[8]] < c_b) | 
 |                                 if(p[pixel[9]] < c_b) | 
 |                                 {} | 
 |                                 else | 
 |                                   continue; | 
 |                               else | 
 |                                 continue; | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                       else | 
 |                         continue; | 
 |                   else | 
 |                     continue; | 
 |                 else | 
 |                   continue; | 
 |               else | 
 |                 continue; | 
 |           else | 
 |             if(p[pixel[9]] > cb) | 
 |               if(p[pixel[7]] > cb) | 
 |                 if(p[pixel[8]] > cb) | 
 |                   if(p[pixel[10]] > cb) | 
 |                     if(p[pixel[11]] > cb) | 
 |                       if(p[pixel[6]] > cb) | 
 |                         if(p[pixel[5]] > cb) | 
 |                           if(p[pixel[4]] > cb) | 
 |                             if(p[pixel[3]] > cb) | 
 |                             {} | 
 |                             else | 
 |                               if(p[pixel[12]] > cb) | 
 |                               {} | 
 |                               else | 
 |                                 continue; | 
 |                           else | 
 |                             if(p[pixel[12]] > cb) | 
 |                               if(p[pixel[13]] > cb) | 
 |                               {} | 
 |                               else | 
 |                                 continue; | 
 |                             else | 
 |                               continue; | 
 |                         else | 
 |                           if(p[pixel[12]] > cb) | 
 |                             if(p[pixel[13]] > cb) | 
 |                               if(p[pixel[14]] > cb) | 
 |                               {} | 
 |                               else | 
 |                                 continue; | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                       else | 
 |                         if(p[pixel[12]] > cb) | 
 |                           if(p[pixel[13]] > cb) | 
 |                             if(p[pixel[14]] > cb) | 
 |                               if(p[pixel[15]] > cb) | 
 |                               {} | 
 |                               else | 
 |                                 continue; | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                     else | 
 |                       continue; | 
 |                   else | 
 |                     continue; | 
 |                 else | 
 |                   continue; | 
 |               else | 
 |                 continue; | 
 |             else if(p[pixel[9]] < c_b) | 
 |               if(p[pixel[10]] < c_b) | 
 |                 if(p[pixel[11]] < c_b) | 
 |                   if(p[pixel[12]] < c_b) | 
 |                     if(p[pixel[13]] < c_b) | 
 |                       if(p[pixel[14]] < c_b) | 
 |                         if(p[pixel[15]] < c_b) | 
 |                         {} | 
 |                         else | 
 |                           if(p[pixel[6]] < c_b) | 
 |                             if(p[pixel[7]] < c_b) | 
 |                               if(p[pixel[8]] < c_b) | 
 |                               {} | 
 |                               else | 
 |                                 continue; | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                       else | 
 |                         if(p[pixel[5]] < c_b) | 
 |                           if(p[pixel[6]] < c_b) | 
 |                             if(p[pixel[7]] < c_b) | 
 |                               if(p[pixel[8]] < c_b) | 
 |                               {} | 
 |                               else | 
 |                                 continue; | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                     else | 
 |                       if(p[pixel[4]] < c_b) | 
 |                         if(p[pixel[5]] < c_b) | 
 |                           if(p[pixel[6]] < c_b) | 
 |                             if(p[pixel[7]] < c_b) | 
 |                               if(p[pixel[8]] < c_b) | 
 |                               {} | 
 |                               else | 
 |                                 continue; | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                       else | 
 |                         continue; | 
 |                   else | 
 |                     if(p[pixel[3]] < c_b) | 
 |                       if(p[pixel[4]] < c_b) | 
 |                         if(p[pixel[5]] < c_b) | 
 |                           if(p[pixel[6]] < c_b) | 
 |                             if(p[pixel[7]] < c_b) | 
 |                               if(p[pixel[8]] < c_b) | 
 |                               {} | 
 |                               else | 
 |                                 continue; | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                       else | 
 |                         continue; | 
 |                     else | 
 |                       continue; | 
 |                 else | 
 |                   continue; | 
 |               else | 
 |                 continue; | 
 |             else | 
 |               continue; | 
 |         else | 
 |           if(p[pixel[8]] > cb) | 
 |             if(p[pixel[7]] > cb) | 
 |               if(p[pixel[9]] > cb) | 
 |                 if(p[pixel[10]] > cb) | 
 |                   if(p[pixel[6]] > cb) | 
 |                     if(p[pixel[5]] > cb) | 
 |                       if(p[pixel[4]] > cb) | 
 |                         if(p[pixel[3]] > cb) | 
 |                           if(p[pixel[2]] > cb) | 
 |                           {} | 
 |                           else | 
 |                             if(p[pixel[11]] > cb) | 
 |                             {} | 
 |                             else | 
 |                               continue; | 
 |                         else | 
 |                           if(p[pixel[11]] > cb) | 
 |                             if(p[pixel[12]] > cb) | 
 |                             {} | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                       else | 
 |                         if(p[pixel[11]] > cb) | 
 |                           if(p[pixel[12]] > cb) | 
 |                             if(p[pixel[13]] > cb) | 
 |                             {} | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                     else | 
 |                       if(p[pixel[11]] > cb) | 
 |                         if(p[pixel[12]] > cb) | 
 |                           if(p[pixel[13]] > cb) | 
 |                             if(p[pixel[14]] > cb) | 
 |                             {} | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                       else | 
 |                         continue; | 
 |                   else | 
 |                     if(p[pixel[11]] > cb) | 
 |                       if(p[pixel[12]] > cb) | 
 |                         if(p[pixel[13]] > cb) | 
 |                           if(p[pixel[14]] > cb) | 
 |                             if(p[pixel[15]] > cb) | 
 |                             {} | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                       else | 
 |                         continue; | 
 |                     else | 
 |                       continue; | 
 |                 else | 
 |                   continue; | 
 |               else | 
 |                 continue; | 
 |             else | 
 |               continue; | 
 |           else if(p[pixel[8]] < c_b) | 
 |             if(p[pixel[9]] < c_b) | 
 |               if(p[pixel[10]] < c_b) | 
 |                 if(p[pixel[11]] < c_b) | 
 |                   if(p[pixel[12]] < c_b) | 
 |                     if(p[pixel[13]] < c_b) | 
 |                       if(p[pixel[14]] < c_b) | 
 |                         if(p[pixel[15]] < c_b) | 
 |                         {} | 
 |                         else | 
 |                           if(p[pixel[6]] < c_b) | 
 |                             if(p[pixel[7]] < c_b) | 
 |                             {} | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                       else | 
 |                         if(p[pixel[5]] < c_b) | 
 |                           if(p[pixel[6]] < c_b) | 
 |                             if(p[pixel[7]] < c_b) | 
 |                             {} | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                     else | 
 |                       if(p[pixel[4]] < c_b) | 
 |                         if(p[pixel[5]] < c_b) | 
 |                           if(p[pixel[6]] < c_b) | 
 |                             if(p[pixel[7]] < c_b) | 
 |                             {} | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                       else | 
 |                         continue; | 
 |                   else | 
 |                     if(p[pixel[3]] < c_b) | 
 |                       if(p[pixel[4]] < c_b) | 
 |                         if(p[pixel[5]] < c_b) | 
 |                           if(p[pixel[6]] < c_b) | 
 |                             if(p[pixel[7]] < c_b) | 
 |                             {} | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                       else | 
 |                         continue; | 
 |                     else | 
 |                       continue; | 
 |                 else | 
 |                   if(p[pixel[2]] < c_b) | 
 |                     if(p[pixel[3]] < c_b) | 
 |                       if(p[pixel[4]] < c_b) | 
 |                         if(p[pixel[5]] < c_b) | 
 |                           if(p[pixel[6]] < c_b) | 
 |                             if(p[pixel[7]] < c_b) | 
 |                             {} | 
 |                             else | 
 |                               continue; | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                       else | 
 |                         continue; | 
 |                     else | 
 |                       continue; | 
 |                   else | 
 |                     continue; | 
 |               else | 
 |                 continue; | 
 |             else | 
 |               continue; | 
 |           else | 
 |             continue; | 
 |       else | 
 |         if(p[pixel[7]] > cb) | 
 |           if(p[pixel[8]] > cb) | 
 |             if(p[pixel[9]] > cb) | 
 |               if(p[pixel[6]] > cb) | 
 |                 if(p[pixel[5]] > cb) | 
 |                   if(p[pixel[4]] > cb) | 
 |                     if(p[pixel[3]] > cb) | 
 |                       if(p[pixel[2]] > cb) | 
 |                         if(p[pixel[1]] > cb) | 
 |                         {} | 
 |                         else | 
 |                           if(p[pixel[10]] > cb) | 
 |                           {} | 
 |                           else | 
 |                             continue; | 
 |                       else | 
 |                         if(p[pixel[10]] > cb) | 
 |                           if(p[pixel[11]] > cb) | 
 |                           {} | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                     else | 
 |                       if(p[pixel[10]] > cb) | 
 |                         if(p[pixel[11]] > cb) | 
 |                           if(p[pixel[12]] > cb) | 
 |                           {} | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                       else | 
 |                         continue; | 
 |                   else | 
 |                     if(p[pixel[10]] > cb) | 
 |                       if(p[pixel[11]] > cb) | 
 |                         if(p[pixel[12]] > cb) | 
 |                           if(p[pixel[13]] > cb) | 
 |                           {} | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                       else | 
 |                         continue; | 
 |                     else | 
 |                       continue; | 
 |                 else | 
 |                   if(p[pixel[10]] > cb) | 
 |                     if(p[pixel[11]] > cb) | 
 |                       if(p[pixel[12]] > cb) | 
 |                         if(p[pixel[13]] > cb) | 
 |                           if(p[pixel[14]] > cb) | 
 |                           {} | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                       else | 
 |                         continue; | 
 |                     else | 
 |                       continue; | 
 |                   else | 
 |                     continue; | 
 |               else | 
 |                 if(p[pixel[10]] > cb) | 
 |                   if(p[pixel[11]] > cb) | 
 |                     if(p[pixel[12]] > cb) | 
 |                       if(p[pixel[13]] > cb) | 
 |                         if(p[pixel[14]] > cb) | 
 |                           if(p[pixel[15]] > cb) | 
 |                           {} | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                       else | 
 |                         continue; | 
 |                     else | 
 |                       continue; | 
 |                   else | 
 |                     continue; | 
 |                 else | 
 |                   continue; | 
 |             else | 
 |               continue; | 
 |           else | 
 |             continue; | 
 |         else if(p[pixel[7]] < c_b) | 
 |           if(p[pixel[8]] < c_b) | 
 |             if(p[pixel[9]] < c_b) | 
 |               if(p[pixel[6]] < c_b) | 
 |                 if(p[pixel[5]] < c_b) | 
 |                   if(p[pixel[4]] < c_b) | 
 |                     if(p[pixel[3]] < c_b) | 
 |                       if(p[pixel[2]] < c_b) | 
 |                         if(p[pixel[1]] < c_b) | 
 |                         {} | 
 |                         else | 
 |                           if(p[pixel[10]] < c_b) | 
 |                           {} | 
 |                           else | 
 |                             continue; | 
 |                       else | 
 |                         if(p[pixel[10]] < c_b) | 
 |                           if(p[pixel[11]] < c_b) | 
 |                           {} | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                     else | 
 |                       if(p[pixel[10]] < c_b) | 
 |                         if(p[pixel[11]] < c_b) | 
 |                           if(p[pixel[12]] < c_b) | 
 |                           {} | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                       else | 
 |                         continue; | 
 |                   else | 
 |                     if(p[pixel[10]] < c_b) | 
 |                       if(p[pixel[11]] < c_b) | 
 |                         if(p[pixel[12]] < c_b) | 
 |                           if(p[pixel[13]] < c_b) | 
 |                           {} | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                       else | 
 |                         continue; | 
 |                     else | 
 |                       continue; | 
 |                 else | 
 |                   if(p[pixel[10]] < c_b) | 
 |                     if(p[pixel[11]] < c_b) | 
 |                       if(p[pixel[12]] < c_b) | 
 |                         if(p[pixel[13]] < c_b) | 
 |                           if(p[pixel[14]] < c_b) | 
 |                           {} | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                       else | 
 |                         continue; | 
 |                     else | 
 |                       continue; | 
 |                   else | 
 |                     continue; | 
 |               else | 
 |                 if(p[pixel[10]] < c_b) | 
 |                   if(p[pixel[11]] < c_b) | 
 |                     if(p[pixel[12]] < c_b) | 
 |                       if(p[pixel[13]] < c_b) | 
 |                         if(p[pixel[14]] < c_b) | 
 |                           if(p[pixel[15]] < c_b) | 
 |                           {} | 
 |                           else | 
 |                             continue; | 
 |                         else | 
 |                           continue; | 
 |                       else | 
 |                         continue; | 
 |                     else | 
 |                       continue; | 
 |                   else | 
 |                     continue; | 
 |                 else | 
 |                   continue; | 
 |             else | 
 |               continue; | 
 |           else | 
 |             continue; | 
 |         else | 
 |           continue; | 
 |       if(num_corners == rsize) | 
 |       { | 
 |         rsize*=2; | 
 |         xy* new_ret_corners = (xy*)realloc(ret_corners, sizeof(xy)*rsize); | 
 |         if(!new_ret_corners) | 
 |         { | 
 |           free(ret_corners); | 
 |           return NULL; | 
 |         } | 
 |         ret_corners = new_ret_corners; | 
 |       } | 
 |       ret_corners[num_corners].x = x; | 
 |       ret_corners[num_corners].y = y; | 
 |       num_corners++; | 
 |  | 
 |     } | 
 |  | 
 |   *ret_num_corners = num_corners; | 
 |   return ret_corners; | 
 |  | 
 | } | 
 |  | 
 | // clang-format on |