itkBayesianClassifierImageFilter.h

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

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkBayesianClassifierImageFilter.h,v $
  Language:  C++
  Date:      $Date: 2005/03/14 21:47:51 $
  Version:   $Revision: 1.4 $

  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 __itkBayesianClassifierImageFilter_h
#define __itkBayesianClassifierImageFilter_h

#include "itkImageToImageFilter.h"
#include "itkMaximumRatioDecisionRule.h"
#include "itkGaussianDensityFunction.h"

namespace itk
{
  
template <class TInputImage, class TOutputImage>
class ITK_EXPORT BayesianClassifierImageFilter :
    public
ImageToImageFilter<TInputImage,TOutputImage>
{
public:
  typedef BayesianClassifierImageFilter  Self;
  typedef ImageToImageFilter<TInputImage,TOutputImage
  >  Superclass;
  typedef SmartPointer<Self>   Pointer;
  typedef SmartPointer<const Self>  ConstPointer;

  itkNewMacro(Self);

  itkTypeMacro(BayesianClassifierImageFilter, ImageToImageFilter);

  typedef typename TInputImage::PixelType  InputPixelType;
  typedef typename TOutputImage::PixelType OutputPixelType;
  
  typedef typename Superclass::InputImageType   InputImageType;
  typedef typename Superclass::OutputImageType  OutputImageType;

  typedef InputPixelType   MeasurementVectorType;

  typedef Statistics::GaussianDensityFunction< MeasurementVectorType > 
                                                              MembershipFunctionType;
  typedef typename MembershipFunctionType::ConstPointer       MembershipFunctionConstPointer;

  typedef std::vector< MembershipFunctionConstPointer >       MembershipFunctionContainer;

  typedef MaximumRatioDecisionRule                            DecisionRuleType;

  
  void AddMembershipFunction( const MembershipFunctionType * newFunction );


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

  virtual void GenerateData();

private:
  BayesianClassifierImageFilter(const Self&); //purposely not implemented
  void operator=(const Self&); //purposely not implemented

  MembershipFunctionContainer     m_MembershipFunctions;  
};

} // end namespace itk

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

#endif

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