itkGreyLevelCooccurrenceMatrixTextureCoefficientsCalculator.h

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

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkGreyLevelCooccurrenceMatrixTextureCoefficientsCalculator.h,v $
  Language:  C++
  Date:      $Date: 2009-05-20 16:21:47 $
  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 __itkGreyLevelCooccurrenceMatrixTextureCoefficientsCalculator_h
#define __itkGreyLevelCooccurrenceMatrixTextureCoefficientsCalculator_h

#include "itkHistogram.h"
#include "itkMacro.h"

namespace itk {
namespace Statistics {

enum TextureFeatureName { Energy, Entropy, Correlation,
  InverseDifferenceMoment, Inertia, ClusterShade, ClusterProminence,
  HaralickCorrelation };

template< class THistogram >
class GreyLevelCooccurrenceMatrixTextureCoefficientsCalculator : public Object
{
public:
  typedef GreyLevelCooccurrenceMatrixTextureCoefficientsCalculator Self;
  typedef Object                                                   Superclass;
  typedef SmartPointer<Self>                                       Pointer;
  typedef SmartPointer<const Self>                                 ConstPointer;

  itkTypeMacro(GreyLevelCooccurrenceMatrixTextureCoefficientsCalculator, Object);

  itkNewMacro(Self);

  typedef THistogram                                      HistogramType;
  typedef typename HistogramType::Pointer                 HistogramPointer;
  typedef typename HistogramType::ConstPointer            HistogramConstPointer;
  typedef typename HistogramType::MeasurementType         MeasurementType;
  typedef typename HistogramType::MeasurementVectorType   MeasurementVectorType;
  typedef typename HistogramType::IndexType               IndexType;
  typedef typename HistogramType::FrequencyType           FrequencyType;
    
  void Compute( void );

  itkSetObjectMacro( Histogram, HistogramType );
  itkGetObjectMacro( Histogram, HistogramType );

  double GetFeature(TextureFeatureName feature);

  itkGetMacro(Energy, double);
  itkGetMacro(Entropy, double);
  itkGetMacro(Correlation, double);
  itkGetMacro(InverseDifferenceMoment, double);
  itkGetMacro(Inertia, double);
  itkGetMacro(ClusterShade, double);
  itkGetMacro(ClusterProminence, double);
  itkGetMacro(HaralickCorrelation, double);
    
protected:
  GreyLevelCooccurrenceMatrixTextureCoefficientsCalculator() {};
  virtual ~GreyLevelCooccurrenceMatrixTextureCoefficientsCalculator() {};
  void PrintSelf(std::ostream& os, Indent indent) const;

private:
  GreyLevelCooccurrenceMatrixTextureCoefficientsCalculator(const Self&); //purposely not implemented
  void operator=(const Self&); //purposely not implemented
   
  HistogramPointer m_Histogram;
  double m_Energy, m_Entropy, m_Correlation, m_InverseDifferenceMoment,
    m_Inertia, m_ClusterShade, m_ClusterProminence, m_HaralickCorrelation;
  void NormalizeHistogram(void);
  void ComputeMeansAndVariances( double &pixelMean, double &marginalMean, 
                                 double &marginalDevSquared, double &pixelVariance );
};


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

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

#endif