The source project of this merge request has been removed.
add MS-SSIM2 for multilayer with reference layer (scalable)
use "printMSSSIM" condition to calculate and print MS-SSIM2 metric (added for RPR use case also) use same print precision for MS-SSIM2 as for MS-SSIM (%1.6lf) (instead of a copy-past of PSNR print line)