freVarianceFieldGenerator.h

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

  Program:   F.R.E.E. - flexible registration evaluation engine
  Version:   v.1.0.0
  Date:      $Date: 2006/09/01 12:00:00 $
  Module:    $RCSfile: freVarianceFieldGenerator.h,v $
  Language:  C++



  Copyright (c) 2007 Ralf o Floca (Department of Medical Informatics,
  Institute for Medical Biometry and Informatics, University of Heidelberg,
  Germany). All rights reserved.
  See FREECopyright.txt or http://www.mi.med.uni-hd.de/free/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 __freVarianceFieldGenerator_h
#define __freVarianceFieldGenerator_h

namespace FREE
{

template <class TInputVectorField,class TOutputField>
class VarianceFieldGenerator
{
public:  
  typedef TInputVectorField                     InputImageType;
        typedef typename InputImageType::Pointer      InputImagePointer;
        typedef typename InputImageType::ValueType    InputValueType;
  typedef TOutputField                          OutputImageType;
        typedef typename OutputImageType::Pointer     OutputImagePointer;
        typedef typename OutputImageType::ValueType   OutputValueType;
        typedef typename OutputImageType::RegionType  OutputRegionType;
        typedef typename OutputImageType::PointType   OutputPointType;
        
private:
  OutputImagePointer m_SumField;

        unsigned int m_iFieldCount;

        bool m_bUserRegion;

        OutputRegionType m_OutputRegion;
  OutputPointType m_OutputOrigin;

        void ResizeSumField(const InputImageType* elementField);

public:

        OutputRegionType GetOutputRegion() const;
        void SetOutputGeometry(const OutputRegionType& outputRegion, const OutputPointType& origin);

        InputImagePointer AddField(const InputImageType* pField, const InputImageType* pMeanField);
  
  OutputImagePointer GetOutput (void) const;

        void Reset();

  VarianceFieldGenerator();

  ~VarianceFieldGenerator();
};


}//End of Namespace free


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

#endif

---