core/vil/algo/vil_fft.h File Reference

Functions to apply the FFT to an image. More...

#include <vcl_complex.h>
#include <vil/vil_image_view.h>

Go to the source code of this file.

Functions
template<class T >
void	vil_fft_2d_fwd (vil_image_view< vcl_complex< T > > &img)
	Perform in place forward FFT.
template<class T >
void	vil_fft_2d_bwd (vil_image_view< vcl_complex< T > > &img)
	Perform in place backward FFT.

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Detailed Description

Functions to apply the FFT to an image.

Author:

Fred Wheeler

Definition in file vil_fft.h.

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Function Documentation

template<class T >

void vil_fft_2d_bwd

(

vil_image_view< vcl_complex< T > > &

img

)

Perform in place backward FFT.

Unlike vnl_fft_2d, scaling is done properly, so using vil_fft_2d_fwd(), then vil_fft_2d_bwd() gets back the original image.

Definition at line 76 of file vil_fft.txx.

template<class T >

void vil_fft_2d_fwd

(

vil_image_view< vcl_complex< T > > &

img

)

Perform in place forward FFT.

Definition at line 60 of file vil_fft.txx.