stira::fouriertools::KISSFFTCalculator Class Reference

A class to compute the Fourier transforms based on the KISS FFT library by Mark Borgerding Mark Borgerding wrote all the kiss_fft files Source: http://sourceforge.net/projects/kissfft/. More...

#include <KISSFFTCalculator.h>

Inheritance diagram for stira::fouriertools::KISSFFTCalculator:

Public Member Functions
	KISSFFTCalculator (ArrayGrid< std::complex< double > > *pComplexGrid)
	construct an FFT calculator initialized with and FFTBand More...
	~KISSFFTCalculator ()
	destructor
void	ApplyForwardTransform ()
	Computes the forward FFT.
void	ApplyInverseTransform ()
	Computes the inverse FFT.
ArrayGrid< std::complex< double > > *	ApplyInverseTransform (ArrayGrid< std::complex< double > > *pGridIn)
	Computes the inverse FFT. More...
Public Member Functions inherited from stira::fouriertools::FFTCalculator
	FFTCalculator (ArrayGrid< std::complex< double > > *pComplexGrid)
	construct an FFT calculator initialized with and FFTBand More...
	FFTCalculator ()
	construct an FFT calculator; not initialized
virtual	~FFTCalculator ()
	destructor
void	SwitchQuadrants ()
	Switches the four quadrants by mirroring them around the center of the image As source image, the image given at construction time is used.
void	SwitchQuadrants (ArrayGrid< std::complex< double > > *pGridIn)
	Switches the four quadrants by mirroring them around the center of the image. More...

Additional Inherited Members
Protected Attributes inherited from stira::fouriertools::FFTCalculator
ArrayGrid< std::complex< double > > *	mpComplexGrid
	Grid with the complex data.
int	mWidth
	width of the data
int	mHeight
	height of the data

Detailed Description

A class to compute the Fourier transforms based on the KISS FFT library by Mark Borgerding Mark Borgerding wrote all the kiss_fft files Source: http://sourceforge.net/projects/kissfft/.

Constructor & Destructor Documentation

stira::fouriertools::KISSFFTCalculator::KISSFFTCalculator

(

ArrayGrid< std::complex< double > > *

pComplexGrid

)

construct an FFT calculator initialized with and FFTBand

Parameters

pComplexGrid

pointer to an ArrayGrid of complex values

Member Function Documentation

ArrayGrid< std::complex<double> >* stira::fouriertools::KISSFFTCalculator::ApplyInverseTransform

(

ArrayGrid< std::complex< double > > *

pGridIn

)

Computes the inverse FFT.

Parameters

pGridIn

the input grid for the forward transform

Returns

a complex-valued grid containing the transformed data; the caller becomes responsible to delete it.

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The documentation for this class was generated from the following files:

• fouriertools/fouriertools/KISSFFTCalculator.h
• fouriertools/fouriertools/KISSFFTCalculator.cpp