We noticed that different implementations of the structural similarity index metric and the multi scale SSIM have different results. This code calculates the metrics from different implementation to compare the results.
https://github.com/VainF/pytorch-msssim/ https://scikit-image.org/docs/dev/auto_examples/transform/plot_ssim.html https://www.tensorflow.org/api_docs/python/tf/image/ssim https://mubeta06.github.io/python/sp/_modules/sp/ssim.html http://vision.cs.stonybrook.edu/~kema/docwarp/eval.zip
Change the img file paths in the ssim_comparison.py file and run it. The results will be logged in a logging file, which you can specify aswell.