itkVectorConfidenceConnectedImageFilter.h

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

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkVectorConfidenceConnectedImageFilter.h,v $
  Language:  C++
  Date:      $Date: 2009-04-25 12:28:11 $
  Version:   $Revision: 1.6 $

  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 __itkVectorConfidenceConnectedImageFilter_h
#define __itkVectorConfidenceConnectedImageFilter_h

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

namespace itk {

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

  itkNewMacro(Self);

  itkTypeMacro(VectorConfidenceConnectedImageFilter,
               ImageToImageFilter);

  typedef TInputImage                           InputImageType;
  typedef typename InputImageType::Pointer      InputImagePointer;
  typedef typename InputImageType::RegionType   InputImageRegionType; 
  typedef typename InputImageType::PixelType    InputImagePixelType; 
  typedef typename InputImageType::IndexType    IndexType;
  typedef typename InputImageType::SizeType     SizeType;
  
  typedef TOutputImage                          OutputImageType;
  typedef typename OutputImageType::Pointer     OutputImagePointer;
  typedef typename OutputImageType::RegionType  OutputImageRegionType; 
  typedef typename OutputImageType::PixelType   OutputImagePixelType; 
  
  typedef std::vector< IndexType >              SeedsContainerType;

  typedef MahalanobisDistanceThresholdImageFunction<
                                           InputImageType >
                                                DistanceThresholdFunctionType;
  
  typedef typename DistanceThresholdFunctionType::CovarianceMatrixType CovarianceMatrixType; 
  typedef typename DistanceThresholdFunctionType::MeanVectorType       MeanVectorType;


  typedef  typename DistanceThresholdFunctionType::Pointer DistanceThresholdFunctionPointer;

  void PrintSelf ( std::ostream& os, Indent indent ) const;

  void SetSeed(const IndexType & seed)
    {
    m_Seeds.clear();
    this->AddSeed( seed );
    }

  void AddSeed(const IndexType & seed)
    {
    m_Seeds.push_back( seed );
    this->Modified();
    }

  itkSetMacro(Multiplier, double);
  itkGetConstMacro(Multiplier, double);

  itkSetMacro(NumberOfIterations, unsigned int);
  itkGetConstMacro(NumberOfIterations, unsigned int);

  itkSetMacro(ReplaceValue, OutputImagePixelType);
  itkGetConstMacro(ReplaceValue, OutputImagePixelType);

  itkSetMacro( InitialNeighborhoodRadius, unsigned int );
  itkGetConstReferenceMacro( InitialNeighborhoodRadius, unsigned int );

  const MeanVectorType & GetMean() const;

  const CovarianceMatrixType & GetCovariance() const;

#ifdef ITK_USE_CONCEPT_CHECKING

  itkConceptMacro(OutputEqualityComparableCheck,
    (Concept::EqualityComparable<OutputImagePixelType>));
  itkConceptMacro(InputHasNumericTraitsCheck,
    (Concept::HasNumericTraits<typename InputImagePixelType::ValueType>));
  itkConceptMacro(OutputOStreamWritableCheck,
    (Concept::OStreamWritable<OutputImagePixelType>));

#endif

protected:
  VectorConfidenceConnectedImageFilter();
  
  
  // Override since the filter needs all the data for the algorithm
  void GenerateInputRequestedRegion();

  // Override since the filter produces the entire dataset
  void EnlargeOutputRequestedRegion(DataObject *output);

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

  SeedsContainerType      m_Seeds;
  double                  m_Multiplier;
  unsigned int            m_NumberOfIterations;
  OutputImagePixelType    m_ReplaceValue;
  unsigned int            m_InitialNeighborhoodRadius;
  
  DistanceThresholdFunctionPointer      m_ThresholdFunction;

};


} // end namespace itk

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

#endif