itkBackwardDifferenceOperator.h

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/*=========================================================================
 *
 *  Copyright Insight Software Consortium
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *         http://www.apache.org/licenses/LICENSE-2.0.txt
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *
 *=========================================================================*/
#ifndef itkBackwardDifferenceOperator_h
#define itkBackwardDifferenceOperator_h

#include "itkNeighborhoodOperator.h"

namespace itk
{
template< typename TPixel, unsigned int TDimension = 2,
          typename TAllocator = NeighborhoodAllocator< TPixel > >
class ITK_TEMPLATE_EXPORT BackwardDifferenceOperator:
  public NeighborhoodOperator< TPixel, TDimension, TAllocator >
{
public:
  ITK_DISALLOW_COPY_AND_ASSIGN(BackwardDifferenceOperator);

  using Self = BackwardDifferenceOperator;
  using Superclass = NeighborhoodOperator< TPixel, TDimension, TAllocator >;

  using PixelType = typename Superclass::PixelType;

  BackwardDifferenceOperator() = default;

protected:
  using CoefficientVector = typename Superclass::CoefficientVector;

  CoefficientVector GenerateCoefficients() override;

  void Fill(const CoefficientVector & coeff) override
  { this->FillCenteredDirectional(coeff); }
};
} // namespace itk

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

#endif