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vtkImageFourierCenter.h
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vtkImageFourierCenter.h
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/*=========================================================================
Program: Visualization Toolkit
Module: vtkImageFourierCenter.h
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
// .NAME vtkImageFourierCenter - Shifts constant frequency to center for
// display.
// .SECTION Description
// Is used for dispaying images in frequency space. FFT converts spatial
// images into frequency space, but puts the zero frequency at the origin.
// This filter shifts the zero frequency to the center of the image.
// Input and output are assumed to be doubles.
#ifndef __vtkImageFourierCenter_h
#define __vtkImageFourierCenter_h
#include "vtkImageDecomposeFilter.h"
class VTK_IMAGING_EXPORT vtkImageFourierCenter : public vtkImageDecomposeFilter
{
public:
static vtkImageFourierCenter *New();
vtkTypeMacro(vtkImageFourierCenter,vtkImageDecomposeFilter);
protected:
vtkImageFourierCenter();
~vtkImageFourierCenter() {};
virtual int IterativeRequestUpdateExtent(vtkInformation* in,
vtkInformation* out);
void ThreadedExecute(vtkImageData *inData, vtkImageData *outData,
int outExt[6], int threadId);
private:
vtkImageFourierCenter(const vtkImageFourierCenter&); // Not implemented.
void operator=(const vtkImageFourierCenter&); // Not implemented.
};
#endif