How to draw a spatial correlation map of noise in Figure 2? Can you provide the relevant code? I have encountered some difficulties.

[mengchuangji]

No description provided.

[wooseoklee4]

Hi, @mengchuangji,

Thanks for your interest in our work

We first get noise map by subtracting clean images from noisy images
And we measured standard deviation of noise and covariance between noises within relative positions.
You can follow the definition of correlation with measured std and covariance.

I think this python code might help you to get spatial correlations (note that this code will not be compatible with this codebase)
correlation_sidd.txt

Best
Wooseok Lee