numpy.fft.rfft2

numpy.fft.rfft2(a, s=None, axes=(-2, -1), norm=None) [source]

Compute the 2-dimensional FFT of a real array.

Parameters:	a : array Input array, taken to be real. s : sequence of ints, optional Shape of the FFT. axes : sequence of ints, optional Axes over which to compute the FFT. norm : {None, “ortho”}, optional New in version 1.10.0. Normalization mode (see numpy.fft). Default is None.
Returns:	out : ndarray The result of the real 2-D FFT.

See also

rfftn

Compute the N-dimensional discrete Fourier Transform for real input.

Notes

This is really just rfftn with different default behavior. For more details see rfftn.