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Module « scipy.fft »

Fonction irfft2 - module scipy.fft

Signature de la fonction irfft2

def irfft2(x, s=None, axes=(-2, -1), norm=None, overwrite_x=False, workers=None, *, plan=None) 

Description

help(scipy.fft.irfft2)

Computes the inverse of `rfft2`

Parameters
----------
x : array_like
    The input array
s : sequence of ints, optional
    Shape of the real output to the inverse FFT.
axes : sequence of ints, optional
    The axes over which to compute the inverse fft.
    Default is the last two axes.
norm : {"backward", "ortho", "forward"}, optional
    Normalization mode (see `fft`). Default is "backward".
overwrite_x : bool, optional
    If True, the contents of `x` can be destroyed; the default is False.
    See :func:`fft` for more details.
workers : int, optional
    Maximum number of workers to use for parallel computation. If negative,
    the value wraps around from ``os.cpu_count()``.
    See :func:`~scipy.fft.fft` for more details.
plan : object, optional
    This argument is reserved for passing in a precomputed plan provided
    by downstream FFT vendors. It is currently not used in SciPy.

    .. versionadded:: 1.5.0

Returns
-------
out : ndarray
    The result of the inverse real 2-D FFT.

See Also
--------
rfft2 : The 2-D FFT of real input.
irfft : The inverse of the 1-D FFT of real input.
irfftn : The inverse of the N-D FFT of real input.

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

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