NumPy参考 >例行程序 >Discrete Fourier Transform (numpy.fft) > numpy.fft.irfft2
numpy.fft.
irfft2
(a, s=None, axes=(-2, -1), norm=None)[source]¶Compute the 2-dimensional inverse FFT of a real array.
The input array
Shape of the real output to the inverse FFT.
The axes over which to compute the inverse fft. Default is the last two axes.
New in version 1.10.0.
Normalization mode (see numpy.fft
). Default is None.
The result of the inverse real 2-D FFT.
See also
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
.