MATLAB: How do we take the inverse fourier transformof this image

Question

I need to find the inverse tramsform of the second image

Answer 1

Your image:

img = imread('imagen','jpg');
h = ifft2(img); %inverse fourier transform
imagesc(abs(h(:,:,1)));

inverse fourier transform:

[r,c,~] = size(h);
H = abs(h(fix(c/2):end,fix(c/2):end,1));
H2 =[H fliplr(H)];
H = [H fliplr(H); flip(H2)];
figure
imagesc(H)