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# scipy.ndimage.fourier.fourier_shift

`scipy.ndimage.fourier.``fourier_shift`(input, shift, n=-1, axis=-1, output=None)

  Multi-dimensional fourier shift filter.

  The array is multiplied with the fourier transform of a shift operation.

  Parameters: | input : array_like The input array. shift : float or sequence The size of the box used for filtering. If a float, shift is the same for all axes. If a sequence, shift has to contain one value for each axis. n : int, optional If n is negative (default), then the input is assumed to be the result of a complex fft. If n is larger than or equal to zero, the input is assumed to be the result of a real fft, and n gives the length of the array before transformation along the real transform direction. axis : int, optional The axis of the real transform. output : ndarray, optional If given, the result of shifting the input is placed in this array. None is returned in this case.
  Returns: | fourier_shift : ndarray or None The shifted input. If output is given as a parameter, None is returned.