freVectorToNormImageFilter.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: freVectorToNormImageFilter.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 __freVectorToNormImageFilter_h
#define __freVectorToNormImageFilter_h

#include "itkUnaryFunctorImageFilter.h"

namespace FREE
{
  
namespace Functor
{  
  
template< class TInput, class TOutput>
class VectorToNormFunctor
{
public:
  VectorToNormFunctor() {};
  ~VectorToNormFunctor() {};
  inline TOutput operator()( const TInput & a)
  {
    TOutput output = a.GetNorm();
    return output;
  }
}; 
}

template <class TInputImage, class TOutputImage>
class ITK_EXPORT VectorToNormImageFilter : public
                itk::UnaryFunctorImageFilter<TInputImage,TOutputImage, 
                         Functor::VectorToNormFunctor< 
  typename TInputImage::PixelType, 
  typename TOutputImage::PixelType>   >
{
public:
  typedef VectorToNormImageFilter  Self;
        typedef itk::UnaryFunctorImageFilter<TInputImage,TOutputImage, 
                                                                                                                                                          Functor::VectorToNormFunctor< 
    typename TInputImage::PixelType, 
    typename TOutputImage::PixelType>   
  >  Superclass;

        typedef itk::SmartPointer<Self>   Pointer;
  typedef itk::SmartPointer<const Self>  ConstPointer;

  itkNewMacro(Self);
  
protected:
  VectorToNormImageFilter() {}
  virtual ~VectorToNormImageFilter() {}

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

};

} // end namespace FREE


#endif

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