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