reference,psnr,y_psnr,vmaf,ms_ssim S4-R01,23.0,25.9,25.4,24.1 S4-R02,25.2,27.2,27.3,24.2 S4-R03,26.6,27.9,31.7,30.0 S4-R04,39.4,40.7,38.1,40.2 Min,23.0,25.9,25.4,24.1 Max,39.4,40.7,38.1,40.2 Avg,28.6,30.4,30.6,29.6