reference,psnr,y_psnr,vmaf,ms_ssim S4-R01,51.4,52.8,56.2,55.4 S4-R02,30.1,30.3,39.3,28.9 S4-R03,34.5,32.2,47.4,35.6 S4-R04,73.6,73.5,70.9,72.4 Min,30.1,30.3,39.3,28.9 Max,73.6,73.5,70.9,72.4 Avg,47.4,47.2,53.5,48.1