itkImageToHistogramGenerator.h

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

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkImageToHistogramGenerator.h,v $
  Language:  C++
  Date:      $Date: 2005-08-24 15:16:46 $
  Version:   $Revision: 1.7 $

  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 __itkImageToHistogramGenerator_h
#define __itkImageToHistogramGenerator_h


#include "itkImageToListAdaptor.h"
#include "itkListSampleToHistogramGenerator.h"
#include "itkObject.h"


namespace itk {
namespace Statistics {

template <typename TAdaptor >
struct GetAdaptorMeasurementVectorLength
{
  itkStaticConstMacro( MeasurementVectorLength, unsigned int, TAdaptor::MeasurementVectorSize );
};

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

  itkTypeMacro(ImageToHistogramGenerator, Object) ;

  itkNewMacro(Self) ;

  typedef TImageType                                      ImageType;
  typedef ImageToListAdaptor< ImageType >                 AdaptorType;
  typedef typename AdaptorType::Pointer                   AdaptorPointer;
  typedef typename ImageType::PixelType                   PixelType;
  typedef typename PixelType::ValueType                   ValueType;
  typedef typename NumericTraits< ValueType >::RealType   ValueRealType;
  typedef DenseFrequencyContainer                         FrequencyContainerType;

  typedef ListSampleToHistogramGenerator< 
                         AdaptorType, 
                         ValueRealType,
                         FrequencyContainerType,
                         ::itk::Statistics::GetAdaptorMeasurementVectorLength< 
                                          AdaptorType >::MeasurementVectorLength
                           > GeneratorType;

  typedef typename GeneratorType::Pointer                   GeneratorPointer;

  typedef typename GeneratorType::HistogramType             HistogramType;
  typedef typename HistogramType::Pointer                   HistogramPointer;
  typedef typename HistogramType::ConstPointer              HistogramConstPointer;
  typedef typename HistogramType::SizeType                  SizeType;
  typedef typename HistogramType::MeasurementVectorType     MeasurementVectorType;

public:

  void Compute( void );

  void SetInput( const ImageType * );

  const HistogramType * GetOutput() const;

  void SetNumberOfBins( const SizeType & size );

  void SetMarginalScale( double marginalScale );
  void SetHistogramMin(const MeasurementVectorType & histogramMin);
  void SetHistogramMax(const MeasurementVectorType & histogramMax);
  void SetAutoMinMax(bool autoMinMax);

protected:
  ImageToHistogramGenerator();
  virtual ~ImageToHistogramGenerator() {};
  void PrintSelf(std::ostream& os, Indent indent) const;


private:

  AdaptorPointer      m_ImageToListAdaptor;

  GeneratorPointer    m_HistogramGenerator;

};


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

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

#endif

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