Function:FftShift

Repositions the quadrants of the fft image, so that the zero frequency components of the fft are at the center of the image. This is useful for visualizing the Fourier transform.

Function

CuviStatus fftShift(const CuviImage& src, CuviImage& dst, const CuviStream& stream = CuviStream());

Parameters

Name	Type	Description
src	const CuviImage&	Input image
dst	CuviImage&	Output image with diagonal quadrants swapped
stream	const CuviStream&	GPU stream ID for execution

Image Type Support

Input	Output
32f	32f

Example

//Creating GPU images CuviImage input = cuvi:io::loadImage(path), fftImage, fftShifted; //Computing the Fourier Transform cuvi::imageTransforms::fft2(input,fftImage); //Shift the fft cuvi::imageTransforms::fftShift(fftImage, fftShifted);