reference,psnr,y_psnr,vmaf,ms_ssim S4-R01,76.9,73.7,63.0,69.2 S4-R02,83.3,81.6,36.0,82.1 S4-R03,82.3,84.2,58.2,79.8 S4-R04,54.9,54.1,49.4,58.1 Min,54.9,54.1,36.0,58.1 Max,83.3,84.2,63.0,82.1 Avg,74.3,73.4,51.6,72.3