urfftn(inarray, dim=None)

This transform considers the Hermitian property of the transform on real-valued input.

Notes

The urfft functions assume an input array of real values. Consequently, the output has a Hermitian property and redundant values are not computed or returned.

Parameters

inarray : ndarray, shape (M, N, ..., P)

The array to transform.

dim : int, optional

The last axis along which to compute the transform. All axes by default.

Returns

outarray : ndarray, shape (M, N, ..., P / 2 + 1)

The unitary N-D real Fourier transform of inarray .

N-dimensional real unitary Fourier transform.

Examples

This example is valid syntax, but we were not able to check execution

>>> input = np.ones((5, 5, 5))
... output = urfftn(input)
... np.allclose(np.sum(input) / np.sqrt(input.size), output[0, 0, 0])
True

This example is valid syntax, but we were not able to check execution

>>> output.shape
(5, 5, 3)

See :

Back References

The following pages refer to to this document either explicitly or contain code examples using this.

skimage.restoration.uft.urfft2 skimage.restoration.uft.urfftn skimage.restoration.uft.ufft2 skimage.restoration.uft.ir2tf

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