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69 lines
2.6 KiB
69 lines
2.6 KiB
/*=========================================================================
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Program: Visualization Toolkit
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Module: $RCSfile: vtkImageVariance3D.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 vtkImageVariance3D - Variance in a neighborhood.
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// .SECTION Description
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// vtkImageVariance3D replaces each pixel with a measurement of
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// pixel variance in a elliptical neighborhood centered on that pixel.
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// The value computed is not exactly the variance.
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// The difference between the neighbor values and center value is computed
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// and squared for each neighbor. These values are summed and divided by
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// the total number of neighbors to produce the output value.
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#ifndef __vtkImageVariance3D_h
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#define __vtkImageVariance3D_h
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#include "vtkImageSpatialAlgorithm.h"
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class vtkImageEllipsoidSource;
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class VTK_IMAGING_EXPORT vtkImageVariance3D : public vtkImageSpatialAlgorithm
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{
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public:
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static vtkImageVariance3D *New();
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vtkTypeRevisionMacro(vtkImageVariance3D,vtkImageSpatialAlgorithm);
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void PrintSelf(ostream& os, vtkIndent indent);
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// Description:
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// This method sets the size of the neighborhood. It also sets the default
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// middle of the neighborhood and computes the Elliptical foot print.
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void SetKernelSize(int size0, int size1, int size2);
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protected:
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vtkImageVariance3D();
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~vtkImageVariance3D();
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vtkImageEllipsoidSource *Ellipse;
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virtual int RequestInformation (vtkInformation *request,
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vtkInformationVector **inputVector,
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vtkInformationVector *outputVector);
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void ThreadedRequestData(vtkInformation *request,
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vtkInformationVector **inputVector,
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vtkInformationVector *outputVector,
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vtkImageData ***inData, vtkImageData **outData,
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int extent[6], int id);
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virtual int RequestData(vtkInformation *request,
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vtkInformationVector **inputVector,
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vtkInformationVector *outputVector);
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private:
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vtkImageVariance3D(const vtkImageVariance3D&); // Not implemented.
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void operator=(const vtkImageVariance3D&); // Not implemented.
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};
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#endif
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