itkVanHerkGilWermanErodeImageFilter.h

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

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkVanHerkGilWermanErodeImageFilter.h,v $
  Language:  C++
  Date:      $Date: 2008-09-30 18:07:03 $
  Version:   $Revision: 1.4 $

  Copyright (c) Insight Software Consortium. All rights reserved.
  See ITKCopyright.txt or http://www.itk.org/HTML/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 notices for more information.

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

#ifndef __itkVanHerkGilWermanErodeImageFilter_h
#define __itkVanHerkGilWermanErodeImageFilter_h

#include "itkVanHerkGilWermanErodeDilateImageFilter.h"

namespace itk {
template <class TPixel>
class MinFunctor
{
public:
  MinFunctor(){}
  ~MinFunctor(){}
  inline TPixel operator()(const TPixel &A, const TPixel &B)
    {
    return vnl_math_min(A, B);
    }
};


template<class TImage, class TKernel>
class  ITK_EXPORT VanHerkGilWermanErodeImageFilter :
    public VanHerkGilWermanErodeDilateImageFilter<TImage, TKernel, MinFunctor<typename TImage::PixelType> >

{
public:
  typedef VanHerkGilWermanErodeImageFilter Self;
  typedef VanHerkGilWermanErodeDilateImageFilter<TImage, TKernel, MinFunctor<typename TImage::PixelType> > Superclass;

  itkTypeMacro(VanHerkGilWermanErodeImageFilter, 
               VanHerkGilWermanErodeDilateImageFilter);

  typedef SmartPointer<Self>        Pointer;
  typedef SmartPointer<const Self>  ConstPointer;

  itkNewMacro(Self);

  virtual ~VanHerkGilWermanErodeImageFilter() {}
protected:

  typedef typename TImage::PixelType   PixelType;

  VanHerkGilWermanErodeImageFilter()
    {
    this->m_Boundary = NumericTraits< PixelType >::max();
    }

  void PrintSelf(std::ostream& os, Indent indent) const
    {
    os << indent << "VanHerkGilWerman erosion: " << std::endl;
    }

private:
  
  VanHerkGilWermanErodeImageFilter(const Self&); //purposely not implemented
  void operator=(const Self&); //purposely not implemented

};


} // namespace itk

#endif

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