how do 2D Fourier transform for non-uniform matrix ?

[KSSV]

Read about fft2

[eslam]

fft2 work good only when two axis are orthogonal, in my case doesn't orthgonal.

Answer 1

[AMIT POTE]

Hi Eslam.

You can calculate the 2D Fourier Transform for a non-uniform matrix using fft2(X) function which takes the input matrix as parameter and returns the transform using fast Fourier Transform algorithm.

Read the following documentation to understand this with the help of examples.

https://in.mathworks.com/help/matlab/ref/fft2.html

[eslam]

fft2 work good only when two axis are orthogonal, in my case doesn't orthgonal,