reference,psnr,y_psnr,vmaf,ms_ssim S4-R01,42.2,43.7,47.4,47.7 S4-R02,19.6,19.2,22.9,19.9 S4-R03,24.0,22.8,34.4,26.6 S4-R04,63.4,63.9,60.9,63.2 Min,19.6,19.2,22.9,19.9 Max,63.4,63.9,60.9,63.2 Avg,37.3,37.4,41.4,39.3