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vtkImageVariance3D.h
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vtkImageVariance3D.h
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/*=========================================================================
Program: Visualization Toolkit
Module: vtkImageVariance3D.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.
=========================================================================*/
/**
* @class vtkImageVariance3D
* @brief Variance in a neighborhood.
*
* vtkImageVariance3D replaces each pixel with a measurement of
* pixel variance in a elliptical neighborhood centered on that pixel.
* The value computed is not exactly the variance.
* The difference between the neighbor values and center value is computed
* and squared for each neighbor. These values are summed and divided by
* the total number of neighbors to produce the output value.
*/
#ifndef vtkImageVariance3D_h
#define vtkImageVariance3D_h
#include "vtkImageSpatialAlgorithm.h"
#include "vtkImagingGeneralModule.h" // For export macro
class vtkImageEllipsoidSource;
class VTKIMAGINGGENERAL_EXPORT vtkImageVariance3D : public vtkImageSpatialAlgorithm
{
public:
static vtkImageVariance3D* New();
vtkTypeMacro(vtkImageVariance3D, vtkImageSpatialAlgorithm);
void PrintSelf(ostream& os, vtkIndent indent) override;
/**
* This method sets the size of the neighborhood. It also sets the default
* middle of the neighborhood and computes the Elliptical foot print.
*/
void SetKernelSize(int size0, int size1, int size2);
protected:
vtkImageVariance3D();
~vtkImageVariance3D() override;
vtkImageEllipsoidSource* Ellipse;
int RequestInformation(vtkInformation* request, vtkInformationVector** inputVector,
vtkInformationVector* outputVector) override;
void ThreadedRequestData(vtkInformation* request, vtkInformationVector** inputVector,
vtkInformationVector* outputVector, vtkImageData*** inData, vtkImageData** outData,
int outExt[6], int id) override;
int RequestData(vtkInformation* request, vtkInformationVector** inputVector,
vtkInformationVector* outputVector) override;
private:
vtkImageVariance3D(const vtkImageVariance3D&) = delete;
void operator=(const vtkImageVariance3D&) = delete;
};
#endif