Function calcPSF

[yustiks]

Hello, Vladislav!
First of all, thank you for the amazing work!
I am trying to run the code, but I have some problems.
Can you explain the function:
calcPSF?
What exactly it produces as a result?

[Coderx7]

calcPSF is actually creating a kernel which is then shifted and converted into frequency domain (fft), and then multiplied by the image's dft. its called PSF or point spread function as well