itkBlackTopHatImageFilter.h

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

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkBlackTopHatImageFilter.h,v $
  Language:  C++
  Date:      $Date: 2005/08/23 15:16:38 $
  Version:   $Revision: 1.1 $

  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 __itkBlackTopHatImageFilter_h
#define __itkBlackTopHatImageFilter_h

#include "itkImageToImageFilter.h"

namespace itk {

template<class TInputImage, class TOutputImage, class TKernel>
class ITK_EXPORT BlackTopHatImageFilter : 
    public ImageToImageFilter<TInputImage, TOutputImage>
{
public:
  typedef BlackTopHatImageFilter Self;
  typedef ImageToImageFilter<TInputImage, TOutputImage>
  Superclass;
  typedef SmartPointer<Self>        Pointer;
  typedef SmartPointer<const Self>  ConstPointer;

  typedef TInputImage InputImageType;
  typedef TOutputImage OutputImageType;
  typedef typename InputImageType::Pointer         InputImagePointer;
  typedef typename InputImageType::ConstPointer    InputImageConstPointer;
  typedef typename InputImageType::RegionType      InputImageRegionType;
  typedef typename InputImageType::PixelType       InputImagePixelType;
  typedef typename OutputImageType::Pointer        OutputImagePointer;
  typedef typename OutputImageType::ConstPointer   OutputImageConstPointer;
  typedef typename OutputImageType::RegionType     OutputImageRegionType;
  typedef typename OutputImageType::PixelType      OutputImagePixelType;
  
  typedef TKernel KernelType;

  itkStaticConstMacro(InputImageDimension, unsigned int,
                      TInputImage::ImageDimension);
  itkStaticConstMacro(OutputImageDimension, unsigned int,
                      TOutputImage::ImageDimension);

  itkNewMacro(Self);  

  itkTypeMacro(BlackTopHatImageFilter, 
               ImageToImageFilter);

  itkSetMacro(Kernel, KernelType);
  
  itkGetConstReferenceMacro(Kernel, KernelType);

protected:
  BlackTopHatImageFilter();
  ~BlackTopHatImageFilter() {};
  void PrintSelf(std::ostream& os, Indent indent) const;

  void GenerateInputRequestedRegion() ;

  void EnlargeOutputRequestedRegion(DataObject *itkNotUsed(output));
  
  void GenerateData();
  

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

  KernelType m_Kernel ;
} ; // end of class

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

#endif

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