reference,psnr,y_psnr,vmaf,ms_ssim S4-R01,60.2,60.0,62.2,64.1 S4-R02,26.0,25.7,30.4,27.4 S4-R03,33.5,31.8,37.7,34.4 S4-R04,71.6,70.8,68.4,71.3 Min,26.0,25.7,30.4,27.4 Max,71.6,70.8,68.4,71.3 Avg,47.8,47.1,49.7,49.3