reference,psnr,y_psnr,vmaf,ms_ssim S4-R01,64.3,62.9,52.8,57.5 S4-R02,81.4,79.7,68.0,78.0 S4-R03,82.0,85.0,78.6,78.7 S4-R04,49.1,50.0,59.3,49.0 Min,49.1,50.0,52.8,49.0 Max,82.0,85.0,78.6,78.7 Avg,69.2,69.4,64.7,65.8