I am working on a project, Reconstruction of damaged Images using Radial Basis Function, and I don’t have any prior experience in image processing. I have didvided the process in these steps:
1. Introducing the Gaussian noise to a standard test image
2. Identify the destructed pixels. (zero value pixels)
3. Define a 5x5 window around that pixel.
4. Using the values of 5x5 neighboring pixels, form a system of linear equations and use LU factorization to find the value and write that value in the place of destructed pixel.
I have done first two steps, now I can’t figure out how to define 5x5 window around that pixel and then replace the value.
Kindly guide me here. Any algorithm, even barely related to this problem (just to give me an idea), would be appreciated. Thank you.