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Results tagged with fft
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user 51649
The fast Fourier transform is an efficient algorithm to compute the discrete Fourier transform (DFT) and its inverse.
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FFT of shifted image in Numpy
I have generated these three 2d-numpy arrays showing translated versions of the same boxes:
I then use numpy to calculate the FFT of each of these images doing:
H1 = np.fft.fft2(im1)
H2 = np.fft.fft2( …
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