why finger.png the py version psnr decrase so much?

[oneTaken]

As described as the title.

sigma = 80:
Py version psnr: 17.781
Cpp version psnr: 20.196

[Ryanshuai]

Can you show me the image?
In fact, in some image, the PSNR decrease if sigma is very high. I guess it is because some trick which CPP version took I did not take into the code.

[oneTaken]

Just the case in the README file. the 13-th case.

https://github.com/Ryanshuai/BM3D_py#comparison-of-cpp-version-and-python-version

Maybe some tricks what you explain above is reasonable.

[Ryanshuai]

Just the case in the README file. the 13-th case.

https://github.com/Ryanshuai/BM3D_py#comparison-of-cpp-version-and-python-version

Maybe some tricks what you explain above is reasonable.

You could try to fix it and send pull request to me ~