itkNeighborhoodOperatorImageFilter.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 itkNeighborhoodOperatorImageFilter_h
#define itkNeighborhoodOperatorImageFilter_h

#include "itkImageToImageFilter.h"
#include "itkNeighborhoodOperator.h"
#include "itkImage.h"
#include "itkZeroFluxNeumannBoundaryCondition.h"

namespace itk
{
template< typename TInputImage, typename TOutputImage, typename TOperatorValueType = typename TOutputImage::PixelType >
class ITK_TEMPLATE_EXPORT NeighborhoodOperatorImageFilter:
  public ImageToImageFilter< TInputImage, TOutputImage >
{
public:
  ITK_DISALLOW_COPY_AND_ASSIGN(NeighborhoodOperatorImageFilter);

  using Self = NeighborhoodOperatorImageFilter;
  using Superclass = ImageToImageFilter< TInputImage, TOutputImage >;
  using Pointer = SmartPointer< Self >;
  using ConstPointer = SmartPointer< const Self >;

  itkNewMacro(Self);

  itkTypeMacro(NeighborhoodOperatorImageFilter, ImageToImageFilter);

  using OutputPixelType = typename TOutputImage::PixelType;
  using OutputInternalPixelType = typename TOutputImage::InternalPixelType;
  using InputPixelType = typename  TInputImage::PixelType;
  using InputInternalPixelType = typename  TInputImage::InternalPixelType;
  using OperatorValueType = TOperatorValueType;

  using InputPixelValueType = typename NumericTraits<InputPixelType>::ValueType;
  using ComputingPixelType = typename NumericTraits<OutputPixelType>::RealType;

  static constexpr unsigned int ImageDimension = TOutputImage::ImageDimension;
  static constexpr unsigned int InputImageDimension = TInputImage::ImageDimension;

  using InputImageType = TInputImage;
  using OutputImageType = TOutputImage;
  using InputImagePointer = typename InputImageType::Pointer;

  using ImageBoundaryConditionPointerType = ImageBoundaryCondition<InputImageType> *;

  using DefaultBoundaryCondition = ZeroFluxNeumannBoundaryCondition< InputImageType >;

  using OutputImageRegionType = typename Superclass::OutputImageRegionType;

  using OutputNeighborhoodType = Neighborhood< OperatorValueType,
                        Self::ImageDimension >;

  void SetOperator(const OutputNeighborhoodType & p)
  {
    m_Operator = p;
    this->Modified();
  }

  const OutputNeighborhoodType & GetOperator() const
  { return m_Operator; }

  void OverrideBoundaryCondition(const ImageBoundaryConditionPointerType i)
  { m_BoundsCondition = i; }

  ImageBoundaryConditionPointerType GetBoundaryCondition()
  { return m_BoundsCondition; }

  void GenerateInputRequestedRegion() override;

#ifdef ITK_USE_CONCEPT_CHECKING
  // Begin concept checking
  itkConceptMacro( SameDimensionCheck,
                   ( Concept::SameDimension< InputImageDimension, ImageDimension > ) );
  itkConceptMacro( OperatorConvertibleToOutputCheck,
                   ( Concept::Convertible< OperatorValueType, OutputPixelType > ) );
  itkConceptMacro( InputConvertibleToOperatorCheck,
                   ( Concept::Convertible< InputPixelValueType, OperatorValueType > ) );
  itkConceptMacro( OperatorMultiplyOperatorCheck,
                   ( Concept::MultiplyOperator< OperatorValueType > ) );
  itkConceptMacro( OperatorAdditiveOperatorsCheck,
                   ( Concept::AdditiveOperators< OperatorValueType > ) );
  // End concept checking
#endif

protected:
  NeighborhoodOperatorImageFilter()
  {
    m_BoundsCondition = static_cast< ImageBoundaryConditionPointerType >( &m_DefaultBoundaryCondition );
    this->DynamicMultiThreadingOn();
  }
  ~NeighborhoodOperatorImageFilter() override = default;

  void DynamicThreadedGenerateData(const OutputImageRegionType & outputRegionForThread) override;


  void PrintSelf(std::ostream & os, Indent indent) const override
  {  Superclass::PrintSelf(os, indent); }

private:
  OutputNeighborhoodType m_Operator;

  ImageBoundaryConditionPointerType m_BoundsCondition;

  DefaultBoundaryCondition m_DefaultBoundaryCondition;
};
} // end namespace itk

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

#endif