itkBackwardDifferenceOperator.h

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

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkBackwardDifferenceOperator.h,v $
  Language:  C++
  Date:      $Date: 2006-03-16 22:07:43 $
  Version:   $Revision: 1.18 $

  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 __itkBackwardDifferenceOperator_h
#define __itkBackwardDifferenceOperator_h

#include "itkNeighborhoodOperator.h"
#include "itkExceptionObject.h"

namespace itk {

template<class TPixel, unsigned int TDimension=2,
  class TAllocator = NeighborhoodAllocator<TPixel> >
class ITK_EXPORT BackwardDifferenceOperator
  : public NeighborhoodOperator<TPixel, TDimension, TAllocator>
{
public:

  typedef BackwardDifferenceOperator                           Self;
  typedef NeighborhoodOperator<TPixel, TDimension, TAllocator> Superclass;

  typedef typename Superclass::PixelType PixelType;

  BackwardDifferenceOperator() {}

protected:
  typedef typename Superclass::CoefficientVector CoefficientVector;

  CoefficientVector GenerateCoefficients();

  void Fill(const CoefficientVector &coeff)
    { this->FillCenteredDirectional(coeff); }

private:
  BackwardDifferenceOperator(const Self& other); //purposely not implemented
  Self &operator=(const Self& other); //purposely not implemented
  
};

} // namespace itk

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

#endif