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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.

=========================================================================*/
#ifndef vtkImageVariance3D_h
#define vtkImageVariance3D_h


#include "vtkImagingGeneralModule.h" // For export macro
#include "vtkImageSpatialAlgorithm.h"

class vtkImageEllipsoidSource;

class VTKIMAGINGGENERAL_EXPORT vtkImageVariance3D : public vtkImageSpatialAlgorithm
{
public:
  static vtkImageVariance3D *New();
  vtkTypeMacro(vtkImageVariance3D,vtkImageSpatialAlgorithm);
  void PrintSelf(ostream& os, vtkIndent indent);

  void SetKernelSize(int size0, int size1, int size2);

protected:
  vtkImageVariance3D();
  ~vtkImageVariance3D();

  vtkImageEllipsoidSource *Ellipse;

  virtual int RequestInformation (vtkInformation *request,
                                  vtkInformationVector **inputVector,
                                  vtkInformationVector *outputVector);

  void ThreadedRequestData(vtkInformation *request,
                           vtkInformationVector **inputVector,
                           vtkInformationVector *outputVector,
                           vtkImageData ***inData, vtkImageData **outData,
                           int extent[6], int id);
  virtual int RequestData(vtkInformation *request,
                          vtkInformationVector **inputVector,
                          vtkInformationVector *outputVector);

private:
  vtkImageVariance3D(const vtkImageVariance3D&);  // Not implemented.
  void operator=(const vtkImageVariance3D&);  // Not implemented.
};

#endif