Questions about the training code?

[JXH-SHU]

Thank you for your impressive work.

Recently, I have learned your training code and noticed that the network outputs an est_sigma. I'm not sure what this is for? Or if this is used to predict the noise variance.

Further I would like to ask, if I want to use your blind-spot architecture, do I just need to replace my convolutional layers?

Looking forward your reply!!!