itkGrayscaleErodeImageFilter.h

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

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkGrayscaleErodeImageFilter.h,v $
  Language:  C++
  Date:      $Date: 2004/04/30 21:02:03 $
  Version:   $Revision: 1.17 $

  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 __itkGrayscaleErodeImageFilter_h
#define __itkGrayscaleErodeImageFilter_h

#include "itkMorphologyImageFilter.h"

namespace itk {

template<class TInputImage, class TOutputImage, class TKernel>
class ITK_EXPORT GrayscaleErodeImageFilter : 
    public MorphologyImageFilter<TInputImage, TOutputImage, TKernel>
{
public:
  typedef GrayscaleErodeImageFilter Self;
  typedef MorphologyImageFilter<TInputImage, TOutputImage, TKernel>
  Superclass;
  typedef SmartPointer<Self>        Pointer;
  typedef SmartPointer<const Self>  ConstPointer;
  
  itkNewMacro(Self);  

  itkTypeMacro(GrayscaleErodeImageFilter, 
               MorphologyImageFilter);
  
  typedef typename Superclass::PixelType PixelType;

  typedef typename Superclass::KernelIteratorType  KernelIteratorType;

  typedef typename Superclass::NeighborhoodIteratorType NeighborhoodIteratorType ;

  typedef typename Superclass::KernelType KernelType;

  typedef typename Superclass::DefaultBoundaryConditionType DefaultBoundaryConditionType;
  
protected:
  GrayscaleErodeImageFilter();
  ~GrayscaleErodeImageFilter() {};

  virtual PixelType Evaluate(const NeighborhoodIteratorType &nit,
                             const KernelIteratorType kernelBegin,
                             const KernelIteratorType kernelEnd);

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

  // Default boundary condition for erosion filter, defaults to
  // NumericTraits<PixelType>::max()
  DefaultBoundaryConditionType m_ErodeBoundaryCondition;

} ; // end of class

} // end namespace itk
  
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkGrayscaleErodeImageFilter.txx"
#endif

#endif

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