Compare the quality between two images using RMSE, SSIM, and PSNR. (part of I3D 2018 Montage4D.com)
Compare the quality between two images using RMSE, SSIM, and PSNR. The values of the PSNR can be predicted from the SSIM and vice-versa. The PSNR and the SSIM mainly differ on their degree of sensitivity to image degradations.
The executable file is under x64/Release/Compare.exe
Compare image_file_name_1 image_file_name_2 [--mask] [--block_size] 2
If the compilation fails, please fix the following environment variables:
The square root of the mean squared error. More sensitive than SSIM and PSNR in values. Wiki: https://en.wikipedia.org/wiki/Root-mean-square_deviation
The SSIM index is calculated on various windows of an image. Wiki: https://en.wikipedia.org/wiki/Structural_similarity
PSNR is most often defined via 10 multiplies the log10 of the normalized mean squared error (MSE). Wiki: https://en.wikipedia.org/wiki/Peak_signal-to-noise_ratio