itkBinaryDilateImageFilter.h

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

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkBinaryDilateImageFilter.h,v $
  Language:  C++
  Date:      $Date: 2003/09/10 14:28:44 $
  Version:   $Revision: 1.14 $

  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 __itkBinaryDilateImageFilter_h
#define __itkBinaryDilateImageFilter_h

#include "itkMorphologyImageFilter.h"

namespace itk {

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

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

  typedef ConstNeighborhoodIterator<TInputImage> 
  NeighborhoodIteratorType ;

  typedef TKernel KernelType;
  
  typedef typename KernelType::ConstIterator KernelIteratorType ;
 
  itkSetMacro(DilateValue, PixelType);

  itkGetMacro(DilateValue, PixelType);
  
protected:
  BinaryDilateImageFilter();
  ~BinaryDilateImageFilter() {};
  void PrintSelf(std::ostream& os, Indent indent) const;

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

  virtual void BeforeThreadedGenerateData();
   
  
private:
  BinaryDilateImageFilter(const Self&); //purposely not implemented
  void operator=(const Self&); //purposely not implemented

  PixelType m_DilateValue;

  // Cache whether the center pixel of the kernel is on (for
  // optimization).
  bool m_KernelCenterPixelOn;

} ; // end of class

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

#endif

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