How to test the BRDnet on natural image with noise？

[coach-wang]

Hello！I have test the BRDnet on provided test set, I found that the BRDnet add the noise on the clear image based the on a fixed sigma and then remove the noise, it works really well. However, if I want to remove the noise of a daily image that I don't know its noise sigma, what should I do with BRDnet?
I try to set the --sigma = 0 and try the model of different levels, and the test results are much worse than the results on the given-sigma-noise image. I think that this network is not practical if it could only work on the given-sigma-noise images.
Thanks anyway

[hellloxiaotian]

Hi. You can use our ADNet and Dudenet for blind denoising to address unknown noise.