How to filter using FFT?

I have this image I want to filter,I am trying to filter it using FFT algorthim? how should I do that?

[nanren888]

I tried Google. Seems lost of people are interested to tell you about how thiis works.

The first link offered was

https://www.youtube.com/watch?v=X53SrMnu91A

[dsk jfda]

I think I am stuck in finding the image filter (the one we multiply the Fourier Transform with),is there are an easy way to find it or should I guess it?

Answer 1

[Image Analyst]

I gave a hint to your classmate in his question: https://www.mathworks.com/matlabcentral/answers/438767-how-to-find-image-filter-for-noised-image#answer_355499