scipy.fftpack.

ifft2

scipy.fftpack.ifft2(x, shape=None, axes=(-2, -1), overwrite_x=False)

2-D discrete inverse Fourier transform of real or complex sequence.

Return inverse 2-D discrete Fourier transform of arbitrary type sequence x.

See ifft for more information.

See also

fft2, ifft

Examples

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>>> import numpy as np
>>> from scipy.fftpack import fft2, ifft2
>>> y = np.mgrid[:5, :5][0]
>>> y
array([[0, 0, 0, 0, 0],
       [1, 1, 1, 1, 1],
       [2, 2, 2, 2, 2],
       [3, 3, 3, 3, 3],
       [4, 4, 4, 4, 4]])
>>> np.allclose(y, fft2(ifft2(y)))
True

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