numpy.fft.irfft2

numpy.fft.irfft2(a, s=None, axes=(-2, -1), norm=None)[源代码]

Compute the 2-dimensional inverse FFT of a real array.

Parameters:
a : array_like

The input array

s : sequence of ints, optional

Shape of the inverse FFT.

axes : sequence of ints, optional

The axes over which to compute the inverse fft. Default is the last two axes.

norm : {None, “ortho”}, optional

1.10.0 新版功能.

Normalization mode (see numpy.fft). Default is None.

Returns:
out : ndarray

The result of the inverse real 2-D FFT.

参见

irfftn
Compute the inverse of the N-dimensional FFT of real input.

Notes

This is really irfftn with different defaults. For more details see irfftn.