itkSampleToHistogramFilter.h

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

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkSampleToHistogramFilter.h,v $
  Language:  C++
  Date:      $Date: 2009-05-02 05:43:58 $
  Version:   $Revision: 1.1 $

  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 __itkSampleToHistogramFilter_h
#define __itkSampleToHistogramFilter_h

#include "itkMacro.h"
#include "itkProcessObject.h"
#include "itkMeasurementVectorTraits.h"
#include "itkSimpleDataObjectDecorator.h"


namespace itk { 
namespace Statistics {

template < class TSample, class THistogram >
class ITK_EXPORT SampleToHistogramFilter : public ProcessObject
{
public:
  typedef SampleToHistogramFilter       Self;  
  typedef ProcessObject                 Superclass;
  typedef SmartPointer< Self >          Pointer;
  typedef SmartPointer<const Self >     ConstPointer;

  itkTypeMacro(SampleToHistogramFilter, ProcessObject);

  itkNewMacro(Self);

  typedef TSample                                        SampleType;
  typedef THistogram                                     HistogramType;
  typedef typename SampleType::MeasurementVectorType     MeasurementVectorType;
  typedef typename MeasurementVectorType::ValueType      MeasurementType;
  typedef typename HistogramType::SizeType               HistogramSizeType;
  typedef typename HistogramType::MeasurementType        HistogramMeasurementType;
  typedef typename HistogramType::MeasurementVectorType  HistogramMeasurementVectorType;


  itkSuperclassTraitMacro( DataObjectPointer )


  virtual void SetInput( const SampleType * sample );
  virtual const SampleType * GetInput() const;

  const HistogramType  * GetOutput() const;

  typedef SimpleDataObjectDecorator<
    HistogramSizeType > InputHistogramSizeObjectType;

  typedef SimpleDataObjectDecorator<
    HistogramMeasurementType > InputHistogramMeasurementObjectType;

  typedef SimpleDataObjectDecorator<
    HistogramMeasurementVectorType > InputHistogramMeasurementVectorObjectType;

  typedef SimpleDataObjectDecorator< bool > InputBooleanObjectType;

  itkSetDecoratedInputMacro( HistogramSize, HistogramSizeType, 1 );

  itkSetDecoratedInputMacro( MarginalScale, HistogramMeasurementType, 2 );

  itkSetDecoratedInputMacro( HistogramBinMinimum, HistogramMeasurementVectorType, 3 );
  itkSetDecoratedInputMacro( HistogramBinMaximum, HistogramMeasurementVectorType, 4 );

  itkSetDecoratedInputMacro( AutoMinimumMaximum, bool, 5 );

  virtual void GraftOutput(DataObject *output);

protected:
  SampleToHistogramFilter();
  virtual ~SampleToHistogramFilter();

  void PrintSelf(std::ostream& os, Indent indent) const;
  
  virtual DataObjectPointer MakeOutput(unsigned int idx);

  // Where the histogram is actually computed
  virtual void GenerateData();
  
private:
  SampleToHistogramFilter(const Self&); //purposely not implemented
  void operator=(const Self&); //purposely not implemented

}; // end of class

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


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

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