vnl_fft_2d< T > Struct Template Reference

In-place 2D fast Fourier transform. More...

#include <vnl_fft_2d.h>

Inheritance diagram for vnl_fft_2d< T >:

Public Types
typedef vnl_fft_base< 2, T >	base

Public Member Functions
	vnl_fft_2d (int M, int N)
	constructor takes size of signal. More...
void	transform (vnl_matrix< std::complex< T > > &signal, int dir)
	dir = +1/-1 according to direction of transform. More...
void	fwd_transform (vnl_matrix< std::complex< T > > &signal)
	forward FFT. More...
void	bwd_transform (vnl_matrix< std::complex< T > > &signal)
	backward (inverse) FFT. More...
unsigned	rows () const
	return size of signal. More...
unsigned	cols () const
void	transform (std::complex< T > *signal, int dir)
	dir = +1/-1 according to direction of transform. More...

Protected Attributes
vnl_fft_prime_factors< T >	factors_ [D]
	prime factorizations of signal dimensions. More...

Detailed Description

template<class T>
struct vnl_fft_2d< T >

In-place 2D fast Fourier transform.

Definition at line 15 of file vnl_fft_2d.h.

Member Typedef Documentation

base

template<class T >

typedef vnl_fft_base<2, T> vnl_fft_2d< T >::base

Definition at line 17 of file vnl_fft_2d.h.

Constructor & Destructor Documentation

vnl_fft_2d()

template<class T >

vnl_fft_2d< T >::vnl_fft_2d ( int  M, int  N  )

inline

constructor takes size of signal.

Definition at line 20 of file vnl_fft_2d.h.

Member Function Documentation

bwd_transform()

template<class T >

void vnl_fft_2d< T >::bwd_transform ( vnl_matrix< std::complex< T > > &  signal )

inline

backward (inverse) FFT.

Definition at line 34 of file vnl_fft_2d.h.

cols()

template<class T >

unsigned vnl_fft_2d< T >::cols ( ) const

inline

Definition at line 39 of file vnl_fft_2d.h.

fwd_transform()

template<class T >

void vnl_fft_2d< T >::fwd_transform ( vnl_matrix< std::complex< T > > &  signal )

inline

forward FFT.

Definition at line 30 of file vnl_fft_2d.h.

rows()

template<class T >

unsigned vnl_fft_2d< T >::rows ( ) const

inline

return size of signal.

Definition at line 38 of file vnl_fft_2d.h.

transform() [1/2]

void vnl_fft_base< D, T >::transform ( std::complex< T > *  signal, int  dir  )

inherited

dir = +1/-1 according to direction of transform.

Definition at line 14 of file vnl_fft_base.hxx.

transform() [2/2]

template<class T >

void vnl_fft_2d< T >::transform ( vnl_matrix< std::complex< T > > &  signal, int  dir  )

inline

dir = +1/-1 according to direction of transform.

Definition at line 26 of file vnl_fft_2d.h.

Member Data Documentation

factors_

vnl_fft_prime_factors<T> vnl_fft_base< D, T >::factors_[D]

protectedinherited

prime factorizations of signal dimensions.

Definition at line 28 of file vnl_fft_base.h.

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The documentation for this struct was generated from the following file:

• core/vnl/algo/vnl_fft_2d.h