vnl_fft_1d< T > Struct Template Reference

#include <vnl_fft_1d.h>

Inheritance diagram for vnl_fft_1d< T >:

List of all members.

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Detailed Description

template<class T>
struct vnl_fft_1d< T >

In-place 1D fast Fourier transform.

Definition at line 32 of file vnl_fft_1d.h.

Public Types
typedef vnl_fft_base< 1, T >	base
Public Member Functions
	vnl_fft_1d (int N)
	constructor takes length of signal.
unsigned int	size () const
	return length of signal.
void	transform (vcl_vector< vcl_complex< T > > &signal, int dir)
	dir = +1/-1 according to direction of transform.
void	transform (vcl_complex< T > *signal, int dir)
	dir = +1/-1 according to direction of transform.
void	transform (vnl_vector< vcl_complex< T > > &signal, int dir)
	dir = +1/-1 according to direction of transform.
void	fwd_transform (vcl_vector< vcl_complex< T > > &signal)
	forward FFT.
void	fwd_transform (vcl_complex< T > *signal)
	forward FFT.
void	fwd_transform (vnl_vector< vcl_complex< T > > &signal)
	forward FFT.
void	bwd_transform (vcl_vector< vcl_complex< T > > &signal)
	backward (inverse) FFT.
void	bwd_transform (vcl_complex< T > *signal)
	backward (inverse) FFT.
void	bwd_transform (vnl_vector< vcl_complex< T > > &signal)
	backward (inverse) FFT.
	vnl_fft_base ()
Protected Attributes
vnl_fft_prime_factors< T >	factors_ [D]
	prime factorizations of signal dimensions.

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Member Typedef Documentation

template<class T> typedef vnl_fft_base<1, T> vnl_fft_1d< T >::base

Definition at line 34 of file vnl_fft_1d.h.

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Constructor & Destructor Documentation

template<class T> vnl_fft_1d< T >::vnl_fft_1d (  int  N  )  [inline]

constructor takes length of signal. Definition at line 37 of file vnl_fft_1d.h.

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Member Function Documentation

template<class T> void vnl_fft_1d< T >::bwd_transform (  vnl_vector< vcl_complex< T > > &  signal  )  [inline]

backward (inverse) FFT. Definition at line 77 of file vnl_fft_1d.h.

template<class T> void vnl_fft_1d< T >::bwd_transform (  vcl_complex< T > *  signal  )  [inline]

backward (inverse) FFT. Definition at line 73 of file vnl_fft_1d.h.

template<class T> void vnl_fft_1d< T >::bwd_transform (  vcl_vector< vcl_complex< T > > &  signal  )  [inline]

backward (inverse) FFT. Definition at line 69 of file vnl_fft_1d.h.

template<class T> void vnl_fft_1d< T >::fwd_transform (  vnl_vector< vcl_complex< T > > &  signal  )  [inline]

forward FFT. Definition at line 65 of file vnl_fft_1d.h.

template<class T> void vnl_fft_1d< T >::fwd_transform (  vcl_complex< T > *  signal  )  [inline]

forward FFT. Definition at line 61 of file vnl_fft_1d.h.

template<class T> void vnl_fft_1d< T >::fwd_transform (  vcl_vector< vcl_complex< T > > &  signal  )  [inline]

forward FFT. Definition at line 57 of file vnl_fft_1d.h.

template<class T> unsigned int vnl_fft_1d< T >::size (   )  const [inline]

return length of signal. Definition at line 42 of file vnl_fft_1d.h.

template<class T> void vnl_fft_1d< T >::transform (  vnl_vector< vcl_complex< T > > &  signal, int  dir )  [inline]

dir = +1/-1 according to direction of transform. Definition at line 53 of file vnl_fft_1d.h.

template<class T> void vnl_fft_1d< T >::transform (  vcl_complex< T > *  signal, int  dir )  [inline]

dir = +1/-1 according to direction of transform. Reimplemented from vnl_fft_base< 1, T >. Definition at line 49 of file vnl_fft_1d.h.

template<class T> void vnl_fft_1d< T >::transform (  vcl_vector< vcl_complex< T > > &  signal, int  dir )  [inline]

dir = +1/-1 according to direction of transform. Definition at line 45 of file vnl_fft_1d.h.

vnl_fft_base< D, T >::vnl_fft_base (   )  [inline, inherited]

Definition at line 20 of file vnl_fft_base.h.

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Member Data Documentation

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

prime factorizations of signal dimensions. Definition at line 27 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_1d.h

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