How to compute power spectrum from 2D FFT
- by user1452954
I've encounter a problem when doing my lab assignment, not sure how to implement this:
Use fft2 on a gray image and to do Fourier transform and then compute the power spectrum. This is my code so far:
>> Pc = imread('pckint.jpg');
>> whos Pc;
Name Size Bytes Class Attributes
Pc 256x256 65536 uint8
>> imshow(Pc);
>> result = fft2(Pc);
My question is from the result. How to computer power spectrum?
