Official implementation of the paper "CVF-SID: Cyclic multi-Variate Function for Self-Supervised Image Denoising by Disentangling Noise from Image" (CVPR 2022)
In section 3.4 we assumed that and ideal clean image is approximately constant for a j-th patch I_c~C and Var(I_c)~0 for a small local region. Therefore Var(I_c+I_cN_d) = Var(I_c)+Var(I_cN_d) = 0+Csigma_d = Csigma_d.
Hello,I would like to ask,what is the matrix c below denote?
It would be appreciate if you could explain the meaning of std below:
![image](https://user-images.githubusercontent.com/58362707/212523591-1323e168-a2ed-4949-bd05-5a07300eadbe.png)