itkSimpleFuzzyConnectednessImageFilterBase.h

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

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkSimpleFuzzyConnectednessImageFilterBase.h,v $
  Language:  C++
  Date:      $Date: 2003/02/26 23:20:31 $
  Version:   $Revision: 1.15 $

  Copyright (c) 2002 Insight 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 __itkSimpleFuzzyConnectednessImageFilterBase_h
#define __itkSimpleFuzzyConnectednessImageFilterBase_h

#include "itkImage.h"
#include "itkImageToImageFilter.h"
#include <vnl/vnl_matrix_fixed.h>

#include <queue>

namespace itk{

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

  itkNewMacro(Self);

  itkTypeMacro(SimpleFuzzyConnectednessImageFilterBase,ImageToImageFilter);

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

  typedef TInputImage InputImageType;
  typedef TOutputImage OutputImageType;
  typedef Image <unsigned short, itkGetStaticConstMacro(ImageDimension)> UShortImage;
  typedef typename TInputImage::IndexType IndexType;
  typedef typename TInputImage::SizeType SizeType;
  typedef typename TInputImage::PixelType PixelType;
  typedef typename UShortImage::Pointer FuzzyScene;
  typedef std::queue<IndexType> QueueType;
  typedef typename TOutputImage::RegionType RegionType;
  
  itkSetMacro(Weight, double);
  itkGetMacro(Weight, double);
  
  itkSetMacro(Threshold, double);
  itkGetMacro(Threshold, double);

  void SetObjectsSeed(const IndexType & seed);
  
  void MakeSegmentObject();

  FuzzyScene GetFuzzyScene(void)
    { return m_FuzzyScene; };

  void UpdateThreshold(const double x);
  
protected:
  SimpleFuzzyConnectednessImageFilterBase();
  ~SimpleFuzzyConnectednessImageFilterBase();

  void GenerateData();

  double m_Weight;
  double m_Threshold;
  IndexType m_ObjectsSeed;
  SizeType m_Size;

  typename InputImageType::ConstPointer m_InputImage;
  typename UShortImage::Pointer m_FuzzyScene;
  typename OutputImageType::Pointer m_SegmentObject; 
  
  QueueType m_Queue;

  void PushNeighbors(const IndexType &center);

  virtual double FuzzyAffinity(const PixelType, const PixelType)
    { return 0; }

  double FindStrongPath(const IndexType &center);

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

};


} 
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkSimpleFuzzyConnectednessImageFilterBase.txx"
#endif

#endif

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