itkMaximumRatioDecisionRule2.h

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

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkMaximumRatioDecisionRule2.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 __itkMaximumRatioDecisionRule2_h
#define __itkMaximumRatioDecisionRule2_h

#include <vector>
#include "vnl/vnl_matrix.h"

#include "itkNumericTraits.h"
#include "itkDecisionRule.h"

namespace itk {
namespace Statistics {


class ITK_EXPORT MaximumRatioDecisionRule2 : 
    public DecisionRule
{
public:
  typedef MaximumRatioDecisionRule2         Self;
  typedef DecisionRule                      Superclass;
  typedef SmartPointer<Self>                Pointer;

  itkTypeMacro(MaximumRatioDecisionRule2, DecisionRule);

  itkNewMacro(Self);

  typedef float                               APrioriValueType;
  typedef std::vector< APrioriValueType >     APrioriVectorType;
  typedef APrioriVectorType::size_type        APrioriVectorSizeType;

  typedef Superclass::MembershipVectorType   MembershipVectorType;
 
  virtual unsigned int Evaluate( const MembershipVectorType &discriminantScores) const;


  void SetAPriori(APrioriVectorType& values);

protected:
  MaximumRatioDecisionRule2();
  virtual ~MaximumRatioDecisionRule2() {}
  
private:
  MaximumRatioDecisionRule2(const Self&); //purposely not implemented
  void operator=(const Self&); //purposely not implemented

  APrioriVectorSizeType m_NumberOfClasses;

  vnl_matrix< double > m_APrioriRatioMatrix;
}; // end of class

} // end of Statistics namespace
} // end of ITK namespace
#endif

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