itkWatershedRelabeler.h

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

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkWatershedRelabeler.h,v $
  Language:  C++
  Date:      $Date: 2009-04-23 03:53:38 $
  Version:   $Revision: 1.12 $

  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 __itkWatershedRelabeler_h
#define __itkWatershedRelabeler_h

#include "itkEquivalencyTable.h"
#include "itkWatershedSegmentTree.h"
#include "itkWatershedSegmenter.h"
#include "itkImage.h"

namespace itk
{
namespace watershed
{

template <class TScalarType, unsigned int TImageDimension>
class ITK_EXPORT Relabeler
  : public ProcessObject
{
public:
  typedef Relabeler                Self;
  typedef ProcessObject            Superclass;
  typedef SmartPointer<Self>       Pointer;
  typedef SmartPointer<const Self> ConstPointer;
  itkNewMacro(Self);
  itkTypeMacro(WatershedRelabeler, ProcessObject);

  itkStaticConstMacro(ImageDimension, unsigned int,TImageDimension);
  
  typedef TScalarType                                    ScalarType;
  typedef Image<unsigned long, TImageDimension>          ImageType;
  typedef SegmentTree<ScalarType>                        SegmentTreeType;
  typedef Segmenter<Image<ScalarType, TImageDimension> > SegmenterType;
  typedef DataObject::Pointer                            DataObjectPointer;

  virtual DataObjectPointer MakeOutput(unsigned int idx);
  
  void SetInputImage(ImageType *img)
    {
    this->ProcessObject::SetNthInput(0, img);
    }
  ImageType * GetInputImage(void)
    {
    return static_cast<ImageType *>
      (this->ProcessObject::GetInput(0) );
    }

  void SetOutputImage(ImageType * img)
    {
    this->ProcessObject::SetNthOutput(0,img);
    }
  ImageType * GetOutputImage(void)
    {
    return static_cast<ImageType *>
      (this->ProcessObject::GetOutput(0) );
    }

  void SetInputSegmentTree(SegmentTreeType *et)
    {
    this->ProcessObject::SetNthInput(1, et);
    }
  SegmentTreeType * GetInputSegmentTree(void)
    {
    return static_cast<SegmentTreeType *>
      (this->ProcessObject::GetInput(1));
    }

  void GenerateData();

  itkSetClampMacro(FloodLevel, double, 0.0, 1.0);
  itkGetConstMacro(FloodLevel, double);

  void GraftOutput(ImageType *graft);
  void GraftNthOutput(unsigned int idx, ImageType *graft);
  
protected:
  Relabeler();
  virtual ~Relabeler() {}
  Relabeler(const Self&) {}
  void operator=(const Self&) {}
  void PrintSelf(std::ostream& os, Indent indent) const;
  
  double m_FloodLevel;
  void GenerateOutputRequestedRegion(DataObject *output);
  void GenerateInputRequestedRegion();
};
  
}// end namespace watershed
}// end namespace itk

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

#endif