tree 1c2b320d0593554492768f49b9e49ca9cf5a9368
parent 20db0d1029649bbceb688937ea06058dec0f81c5
author Paul Wilkins <paulwilkins@google.com> 1571822072 +0100
committer Paul Wilkins <paulwilkins@google.com> 1572974910 +0000

Change to calc_correction_factor() in two pass.

Change to the calculation of the correction factor with q.

Small average gains seen overall on tests sets though neutral on low res.
(Av psnr, ov psnr, ssim, psnr-hvs, vmaf)

Low Res  0.011	-0.022	-0.079	 0.124	 0.011
UGC 360 -0.266	-0.182	-0.012	-0.090	-0.190
Mid Res -0.352	 0.028	-0.095	-0.242	 0.012
HD  Res -0.052	-0.490	-0.300	-0.045	-0.067

STATS_CHANGED

Change-Id: Ic077f502e15a05980882bf13bd1285c8bf09a2ac