itkStatisticsLabelMapFilter.h

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

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkStatisticsLabelMapFilter.h,v $
  Language:  C++
  Date:      $Date: 2009-08-08 01:21:23 $
  Version:   $Revision: 1.2 $

  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 __itkStatisticsLabelMapFilter_h
#define __itkStatisticsLabelMapFilter_h

#include "itkShapeLabelMapFilter.h"

namespace itk {
template<class TImage, class TFeatureImage>
class ITK_EXPORT StatisticsLabelMapFilter : 
    public ShapeLabelMapFilter<TImage, Image< typename TImage::PixelType, ::itk::GetImageDimension<TImage>::ImageDimension> >
{
public:
  typedef StatisticsLabelMapFilter    Self;
  typedef ShapeLabelMapFilter<TImage> Superclass;
  typedef SmartPointer<Self>          Pointer;
  typedef SmartPointer<const Self>    ConstPointer;

  typedef TImage                               ImageType;
  typedef typename ImageType::Pointer          ImagePointer;
  typedef typename ImageType::ConstPointer     ImageConstPointer;
  typedef typename ImageType::PixelType        PixelType;
  typedef typename ImageType::IndexType        IndexType;
  typedef typename ImageType::PointType        PointType;
  typedef typename ImageType::LabelObjectType  LabelObjectType;
  typedef typename LabelObjectType::MatrixType MatrixType;
  typedef typename LabelObjectType::VectorType VectorType;

  typedef TFeatureImage                              FeatureImageType;
  typedef typename FeatureImageType::Pointer         FeatureImagePointer;
  typedef typename FeatureImageType::ConstPointer    FeatureImageConstPointer;
  typedef typename FeatureImageType::PixelType       FeatureImagePixelType;
  
  itkStaticConstMacro(ImageDimension, unsigned int,
                      TImage::ImageDimension);

  itkNewMacro(Self);  

  itkTypeMacro(StatisticsLabelMapFilter, 
               ShapeLabelMapFilter);

#ifdef ITK_USE_CONCEPT_CHECKING

/*  itkConceptMacro(InputEqualityComparableCheck,
    (Concept::EqualityComparable<InputImagePixelType>));
  itkConceptMacro(IntConvertibleToInputCheck,
    (Concept::Convertible<int, InputImagePixelType>));
  itkConceptMacro(InputOStreamWritableCheck,
    (Concept::OStreamWritable<InputImagePixelType>));*/

#endif

  void SetFeatureImage(const TFeatureImage *input)
    {
    // Process object is not const-correct so the const casting is required.
    this->SetNthInput( 1, const_cast<TFeatureImage *>(input) );
    }

  FeatureImageType * GetFeatureImage()
    {
    return static_cast<FeatureImageType*>(const_cast<DataObject *>(this->ProcessObject::GetInput(1)));
    }

  void SetInput1(TImage *input)
    {
    this->SetInput( input );
    }

  void SetInput2(const TFeatureImage *input)
    {
    this->SetFeatureImage( input );
    }

  itkSetMacro(ComputeHistogram, bool);
  itkGetConstReferenceMacro(ComputeHistogram, bool);
  itkBooleanMacro(ComputeHistogram);

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


protected:
  StatisticsLabelMapFilter();
  ~StatisticsLabelMapFilter() {};

  virtual void ThreadedProcessLabelObject( LabelObjectType * labelObject );
  
  virtual void BeforeThreadedGenerateData();
  
  void PrintSelf(std::ostream& os, Indent indent) const;

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

  FeatureImagePixelType m_Minimum;
  FeatureImagePixelType m_Maximum;
  unsigned int          m_NumberOfBins;
  bool                  m_ComputeHistogram;

}; // end of class

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

#endif