itkHardConnectedComponentImageFilter.h

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

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkHardConnectedComponentImageFilter.h,v $
  Language:  C++
  Date:      $Date: 2008-10-16 16:45:09 $
  Version:   $Revision: 1.7 $

  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 __itkHardConnectedComponentImageFilter_h
#define __itkHardConnectedComponentImageFilter_h

#include "itkImageToImageFilter.h"
#include "itkImage.h"

namespace itk
template <class TInputImage, class TOutputImage>
class ITK_EXPORT HardConnectedComponentImageFilter : 
    public ImageToImageFilter< TInputImage, TOutputImage > 
{
public:
  typedef HardConnectedComponentImageFilter               Self;
  typedef ImageToImageFilter< TInputImage, TOutputImage > Superclass;

  typedef typename TOutputImage::PixelType         OutputPixelType;
  typedef typename TOutputImage::InternalPixelType OutputInternalPixelType;
  typedef typename TInputImage::PixelType          InputPixelType;
  typedef typename TInputImage::InternalPixelType  InputInternalPixelType;
  itkStaticConstMacro(InputImageDimension, unsigned int,
                      TInputImage::ImageDimension);
  itkStaticConstMacro(ImageDimension, unsigned int,
                      TOutputImage::ImageDimension);

  typedef TInputImage                             InputImageType;
  typedef TOutputImage                            OutputImageType;
  typedef   typename TInputImage::IndexType       IndexType;
  typedef   typename TInputImage::SizeType        SizeType;
  typedef   typename TOutputImage::RegionType     RegionType;
  typedef   std::list<IndexType>                  ListType;

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

  itkTypeMacro(HardConnectedComponentImageFilter, ImageToImageFilter);

  itkNewMacro(Self);

  void SetObjectSeed( const IndexType &seed)
    {m_Seeds.push_front(seed);} 

#ifdef ITK_USE_CONCEPT_CHECKING

  itkConceptMacro(SameDimensionCheck,
    (Concept::SameDimension<InputImageDimension, ImageDimension>));
  itkConceptMacro(IntConvertibleToOutputCheck,
    (Concept::Convertible<int, OutputPixelType>));
  itkConceptMacro(UnsignedShortConvertibleToOutputCheck,
    (Concept::Convertible<unsigned short, OutputPixelType>));
  itkConceptMacro(OutputEqualityComparableCheck,
    (Concept::EqualityComparable<OutputPixelType>));
  itkConceptMacro(UnsignedCharConvertibleToOutputCheck,
    (Concept::Convertible<unsigned char, OutputPixelType>));
  itkConceptMacro(OutputIncrementDecrementOperatorsCheck,
    (Concept::IncrementDecrementOperators<OutputPixelType>));

#endif

protected:
  HardConnectedComponentImageFilter() {}
  virtual ~HardConnectedComponentImageFilter() {}
  HardConnectedComponentImageFilter(const Self&) {}

  void GenerateData();
  void PrintSelf(std::ostream& os, Indent indent) const
  { Superclass::PrintSelf(os,indent); }

  
private:
  ListType    m_Seeds;
};
  
} // end namespace itk

#ifndef ITK_MANUAL_INSTANTIATION
#include "itkHardConnectedComponentImageFilter.txx"
#endif

#endif