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Yushin Cho authored
Which was a workaround to balance the quality between luma and chroma when PVQ is enabled, by 1) skipping PVQ DC RDO for chroma and 2) using smaller lambda value (x0.5) for intra prediction of chroma, intended to spend more bits and thus improve quality for chroma. The change in metric for 5 frames of objective-1-fast is: PSNR PSNR-HVS SSIM CIEDE-2000 PSNR Cb PSNR Cr MS-SSIM -1.45 -1.54 -1.46 4.62 13.71 14.87 -1.47 For still images (subset1) PSNR PSNR-HVS SSIM CIEDE-2000 PSNR Cb PSNR Cr MS-SSIM VMAF -1.52 -1.54 -1.60 2.56 11.92 12.17 -1.52 -1.66 Change-Id: I31c4d7a7de2939f6004c112649f7303f0e944156
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