ifft#

kikuchipy.pattern.ifft(fft_pattern: ndarray, shift: bool = False, real_fft_only: bool = False, **kwargs) → ndarray[source]#

Compute the inverse Fast Fourier Transform (IFFT) of an FFT of an EBSD pattern.

Very light wrapper around routines in scipy.fft. The routines are wrapped instead of used directly to accommodate easy setting of shift and real_fft_only.

Parameters:

fft_pattern: FFT of EBSD pattern.
shift: Whether to shift the zero-frequency component back to the corners of the spectrum (default is False).
real_fft_only: If True, the discrete IFFT is computed for real input using scipy.fft.irfft2(). If False (default), it is computed using scipy.fft.ifft2().
**kwargs: Keyword arguments pass to scipy.fft.ifft().

Returns:

pattern: Real part of the IFFT of the EBSD pattern.