fft2 ifft2
Na podstawie: http://wearcam.org/ece431/example2dimensional_fft.htm
fft2:
% x - input matrix
Xc = [];
[m n] = size(x);
for i=1:n
Xc = [Xc fft(x(:, i))];
end
fft_x =(fft(Xc.').');
ifft2:
% fft_x - input matrix
Xc = [];
[m n] = size(fft_x);
for i=1:n
Xc = [Xc ifft(fft_x(:, i))];
end
ifft_x =(ifft(Xc.').');
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