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/*=========================================================================

  Program:   Visualization Toolkit
  Module:    vtkImageMedian3D.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   vtkImageMedian3D
 * @brief   Median Filter
 *
 * vtkImageMedian3D a Median filter that replaces each pixel with the
 * median value from a rectangular neighborhood around that pixel.
 * Neighborhoods can be no more than 3 dimensional.  Setting one
 * axis of the neighborhood kernelSize to 1 changes the filter
 * into a 2D median.
*/

#ifndef vtkImageMedian3D_h
#define vtkImageMedian3D_h


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

class VTKIMAGINGGENERAL_EXPORT vtkImageMedian3D : public vtkImageSpatialAlgorithm
{
public:
  static vtkImageMedian3D *New();
  vtkTypeMacro(vtkImageMedian3D,vtkImageSpatialAlgorithm);
  void PrintSelf(ostream& os, vtkIndent indent);

  /**
   * This method sets the size of the neighborhood.  It also sets the
   * default middle of the neighborhood
   */
  void SetKernelSize(int size0, int size1, int size2);

  //@{
  /**
   * Return the number of elements in the median mask
   */
  vtkGetMacro(NumberOfElements,int);
  //@}

protected:
  vtkImageMedian3D();
  ~vtkImageMedian3D();

  int NumberOfElements;

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

private:
  vtkImageMedian3D(const vtkImageMedian3D&) VTK_DELETE_FUNCTION;
  void operator=(const vtkImageMedian3D&) VTK_DELETE_FUNCTION;
};

#endif