reference,psnr,y_psnr,vmaf,ms_ssim S4-R01,70.3,71.2,63.0,63.8 S4-R02,88.4,89.3,80.4,85.9 S4-R03,84.5,88.9,90.9,88.8 S4-R04,58.1,61.6,72.6,59.7 Min,58.1,61.6,63.0,59.7 Max,88.4,89.3,90.9,88.8 Avg,75.3,77.8,76.7,74.5