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. | |
| void | transform (vnl_matrix< vcl_complex< T > > &signal, int dir) |
| dir = +1/-1 according to direction of transform. | |
| void | fwd_transform (vnl_matrix< vcl_complex< T > > &signal) |
| forward FFT. | |
| void | bwd_transform (vnl_matrix< vcl_complex< T > > &signal) |
| backward (inverse) FFT. | |
| unsigned | rows () const |
| return size of signal. | |
| unsigned | cols () const |
| void | transform (vcl_complex< T > *signal, int dir) |
| dir = +1/-1 according to direction of transform. | |
Protected Attributes | |
| vnl_fft_prime_factors< T > | factors_ [D] |
| prime factorizations of signal dimensions. | |
Detailed Description
template<class T>
struct vnl_fft_2d< T >
In-place 2D fast Fourier transform.
Definition at line 18 of file vnl_fft_2d.h.
Member Typedef Documentation
template<class T >
| typedef vnl_fft_base<2, T> vnl_fft_2d< T >::base |
Definition at line 20 of file vnl_fft_2d.h.
Constructor & Destructor Documentation
template<class T >
| vnl_fft_2d< T >::vnl_fft_2d | ( | int | M, |
| int | N | ||
| ) | [inline] |
constructor takes size of signal.
Definition at line 23 of file vnl_fft_2d.h.
Member Function Documentation
template<class T >
| void vnl_fft_2d< T >::bwd_transform | ( | vnl_matrix< vcl_complex< T > > & | signal | ) | [inline] |
backward (inverse) FFT.
Definition at line 37 of file vnl_fft_2d.h.
template<class T >
| unsigned vnl_fft_2d< T >::cols | ( | ) | const [inline] |
Definition at line 42 of file vnl_fft_2d.h.
template<class T >
| void vnl_fft_2d< T >::fwd_transform | ( | vnl_matrix< vcl_complex< T > > & | signal | ) | [inline] |
forward FFT.
Definition at line 33 of file vnl_fft_2d.h.
template<class T >
| unsigned vnl_fft_2d< T >::rows | ( | ) | const [inline] |
return size of signal.
Definition at line 41 of file vnl_fft_2d.h.
| void vnl_fft_base< D, T >::transform | ( | vcl_complex< T > * | signal, |
| int | dir | ||
| ) | [inherited] |
dir = +1/-1 according to direction of transform.
template<class T >
| void vnl_fft_2d< T >::transform | ( | vnl_matrix< vcl_complex< T > > & | signal, |
| int | dir | ||
| ) | [inline] |
dir = +1/-1 according to direction of transform.
Definition at line 29 of file vnl_fft_2d.h.
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.
The documentation for this struct was generated from the following file:
- core/vnl/algo/vnl_fft_2d.h
