itkTobogganImageFilter.h

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

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkTobogganImageFilter.h,v $
  Language:  C++
  Date:      $Date: 2008-10-18 16:11:15 $
  Version:   $Revision: 1.11 $

  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 __itkTobogganImageFilter_h
#define __itkTobogganImageFilter_h

#include "itkImageToImageFilter.h"
#include "itkConstNeighborhoodIterator.h"

namespace itk {

template<class TInputImage>
class ITK_EXPORT TobogganImageFilter : 
    public ImageToImageFilter<
  TInputImage,
  Image<unsigned long, ::itk::GetImageDimension<TInputImage>::ImageDimension> >
{
public:
  typedef TobogganImageFilter Self;

  typedef TInputImage InputImageType;

  itkStaticConstMacro(NDimensions, unsigned int, TInputImage::ImageDimension);

  typedef Image<unsigned long, itkGetStaticConstMacro(NDimensions)> OutputImageType;

  typedef typename OutputImageType::PixelType OutputImagePixelType;

  typedef typename InputImageType::PixelType InputImagePixelType;

  enum {ImageDimension = InputImageType::ImageDimension };

  typedef typename InputImageType::RegionType   RegionType;
  typedef typename InputImageType::SizeType     SizeType;
  typedef typename InputImageType::IndexType    IndexType;
  typedef typename InputImageType::Pointer      InputImagePointer;
  typedef typename InputImageType::ConstPointer InputImageConstPointer;
  typedef typename OutputImageType::Pointer     OutputImagePointer;

  typedef ImageToImageFilter< InputImageType, OutputImageType > Superclass;

  typedef typename InputImageType::PixelType ScalarType;

  typedef SmartPointer<Self> Pointer;

  itkTypeMacro(TobogganImageFilter, ImageToImageFilter);

  itkNewMacro(Self);

  void GenerateData();
  void GenerateInputRequestedRegion();
  void EnlargeOutputRequestedRegion ( DataObject* );

  typedef ConstNeighborhoodIterator<TInputImage> 
  NeighborhoodIteratorType;

#ifdef ITK_USE_CONCEPT_CHECKING

  itkConceptMacro(LessThanComparableCheck,
                  (Concept::LessThanComparable<InputImagePixelType>));
  itkConceptMacro(OStreamWritableCheck,
                  (Concept::OStreamWritable<InputImagePixelType>));

#endif

protected:
  TobogganImageFilter();
  ~TobogganImageFilter() {};
  void PrintSelf(std::ostream& os, Indent indent) const;
  
private:
  TobogganImageFilter(const Self&); //purposely not implemented
  void operator=(const Self&); //purposely not implemented

}; // end of class

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

#endif