itkTableLookupSampleClassifier.h

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

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkTableLookupSampleClassifier.h,v $
  Language:  C++
  Date:      $Date: 2002/10/01 01:36:06 $
  Version:   $Revision: 1.8 $

  Copyright (c) 2002 Insight 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 __itkTableLookupSampleClassifier_h
#define __itkTableLookupSampleClassifier_h

#include <vector>

#include "itkSampleClassifier.h"
#include "itkImageRegionIteratorWithIndex.h"

namespace itk{ 
namespace Statistics{

template< class TSample >
class ITK_EXPORT TableLookupSampleClassifier : 
    public SampleClassifier< TSample >
{
public:
  typedef TableLookupSampleClassifier Self;
  typedef SampleClassifier< TSample > Superclass;
  typedef SmartPointer<Self> Pointer;

  itkTypeMacro(TableLookupSampleClassifier, SampleClassifier);
  itkNewMacro(Self) ;

  typedef typename Superclass::OutputType OutputType;
  typedef typename Superclass::MeasurementType MeasurementType ;
  typedef typename Superclass::MeasurementVectorType MeasurementVectorType ;

  itkStaticConstMacro(MeasurementVectorSize, unsigned int,
                      Superclass::MeasurementVectorSize);

  typedef Index< itkGetStaticConstMacro(MeasurementVectorSize) > CachedMeasurementVectorType ;
  typedef Image< MeasurementType, itkGetStaticConstMacro(MeasurementVectorSize) > LookupTableType ;
  typedef typename LookupTableType::Pointer LookupTablePointer ;
  typedef ImageRegionIteratorWithIndex< LookupTableType > LookupTableIteratorType ;
  typedef typename LookupTableType::RegionType RegionType ;
  typedef typename LookupTableType::SizeType SizeType ;

  void SetLookupTableLowerBound(MeasurementVectorType lower) ;

  void SetLookupTableUpperBound(MeasurementVectorType upper) ;

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

  void PrepareLookupTable() ;

  void GenerateData() ;

private:
  LookupTablePointer m_LookupTable ;
  CachedMeasurementVectorType m_UpperBound ;
  CachedMeasurementVectorType m_LowerBound ;
} ; // end of class


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


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

#endif

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