itkScalarImageToGreyLevelCooccurrenceMatrixGenerator.h

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

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkScalarImageToGreyLevelCooccurrenceMatrixGenerator.h,v $
  Language:  C++
  Date:      $Date: 2009-05-20 16:21:47 $
  Version:   $Revision: 1.10 $

  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 __itkScalarImageToGreyLevelCooccurrenceMatrixGenerator_h
#define __itkScalarImageToGreyLevelCooccurrenceMatrixGenerator_h

#include "itkImage.h"
#include "itkHistogram.h"
#include "itkDenseFrequencyContainer.h"
#include "itkVectorContainer.h"
#include "itkObject.h"
#include "itkNumericTraits.h"
#include "itkMacro.h"

namespace itk {
namespace Statistics {

template< class TImageType,
          class THistogramFrequencyContainer = DenseFrequencyContainer >
class ScalarImageToGreyLevelCooccurrenceMatrixGenerator : public Object
{
public:
  typedef ScalarImageToGreyLevelCooccurrenceMatrixGenerator Self;
  typedef Object                                            Superclass;
  typedef SmartPointer<Self>                                Pointer;
  typedef SmartPointer<const Self>                          ConstPointer;

  itkTypeMacro(ScalarImageToGreyLevelCooccurrenceMatrixGenerator, Object);

  itkNewMacro(Self);

  typedef TImageType                                      ImageType;
  typedef typename ImageType::Pointer                     ImagePointer;
  typedef typename ImageType::ConstPointer                ImageConstPointer;
  typedef typename ImageType::PixelType                   PixelType;
  typedef typename ImageType::RegionType                  RegionType;
  typedef typename ImageType::SizeType                    RadiusType;
  typedef typename ImageType::OffsetType                  OffsetType;
  typedef VectorContainer<unsigned char, OffsetType>      OffsetVector;
  typedef typename OffsetVector::Pointer                  OffsetVectorPointer;
  typedef typename OffsetVector::ConstPointer             OffsetVectorConstPointer;
    
  typedef typename NumericTraits<PixelType>::RealType     MeasurementType;
    
  typedef Histogram< MeasurementType, 2, THistogramFrequencyContainer >
                                                          HistogramType;
  typedef typename HistogramType::Pointer                 HistogramPointer;
  typedef typename HistogramType::ConstPointer            HistogramConstPointer;
  typedef typename HistogramType::MeasurementVectorType   MeasurementVectorType;
    
    
  itkStaticConstMacro(DefaultBinsPerAxis, unsigned int, 256);
    
  void Compute( void );

  itkSetConstObjectMacro( Input, ImageType );
  itkGetConstObjectMacro( Input, ImageType );

  itkSetConstObjectMacro( Offsets, OffsetVector );
  itkGetConstObjectMacro( Offsets, OffsetVector );
  void SetOffset( const OffsetType offset )
    {
    OffsetVectorPointer offsetVector = OffsetVector::New();
    offsetVector->push_back(offset);
    this->SetOffsets(offsetVector);
    }

  itkGetObjectMacro( Output, HistogramType );

  itkSetMacro( NumberOfBinsPerAxis, unsigned int );
  itkGetMacro( NumberOfBinsPerAxis, unsigned int );

  void SetPixelValueMinMax( PixelType min, PixelType max );
  itkGetMacro(Min, PixelType);
  itkGetMacro(Max, PixelType);

  itkSetMacro(Normalize, bool);
  itkGetMacro(Normalize, bool);
  itkBooleanMacro(Normalize);

protected:
  ScalarImageToGreyLevelCooccurrenceMatrixGenerator();
  virtual ~ScalarImageToGreyLevelCooccurrenceMatrixGenerator() {};
  void PrintSelf(std::ostream& os, Indent indent) const;
  virtual void FillHistogram( RadiusType radius, RegionType region );
  
private:
  ScalarImageToGreyLevelCooccurrenceMatrixGenerator(const Self&); //purposely not implemented
  void operator=(const Self&); //purposely not implemented
  void NormalizeHistogram( void );
  
  ImageConstPointer        m_Input;
  HistogramPointer         m_Output;
  OffsetVectorConstPointer m_Offsets;
  PixelType                m_Min;
  PixelType                m_Max;

  unsigned int            m_NumberOfBinsPerAxis;
  MeasurementVectorType   m_LowerBound;
  MeasurementVectorType   m_UpperBound;
  bool                    m_Normalize;

};

} // end of namespace Statistics 
} // end of namespace itk 

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

#endif

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