itkErodeObjectMorphologyImageFilter.h

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/*=========================================================================
 *
 *  Copyright NumFOCUS
 *
 *  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
 *
 *         https://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 itkErodeObjectMorphologyImageFilter_h
#define itkErodeObjectMorphologyImageFilter_h
 
#include "itkObjectMorphologyImageFilter.h"
 
namespace itk
{
template <typename TInputImage, typename TOutputImage, typename TKernel>
class ITK_TEMPLATE_EXPORT ErodeObjectMorphologyImageFilter
  : public ObjectMorphologyImageFilter<TInputImage, TOutputImage, TKernel>
{
public:
  ITK_DISALLOW_COPY_AND_MOVE(ErodeObjectMorphologyImageFilter);

  using Self = ErodeObjectMorphologyImageFilter;
  using Superclass = ObjectMorphologyImageFilter<TInputImage, TOutputImage, TKernel>;
  using Pointer = SmartPointer<Self>;
  using ConstPointer = SmartPointer<const Self>;

  itkNewMacro(Self);

  itkOverrideGetNameOfClassMacro(ErodeObjectMorphologyImageFilter);

  using typename Superclass::PixelType;

  using KernelType = TKernel;

  using KernelIteratorType = typename KernelType::ConstIterator;
 
  using OutputNeighborhoodIteratorType = NeighborhoodIterator<TOutputImage>;

  using typename Superclass::DefaultBoundaryConditionType;

  void
  SetErodeValue(PixelType objectValue)
  {
    this->SetObjectValue(objectValue);
  }

  PixelType
  GetErodeValue()
  {
    return this->GetObjectValue();
  }

  itkSetMacro(BackgroundValue, PixelType);

  itkGetConstMacro(BackgroundValue, PixelType);

  using KernelPixelType = typename TKernel::PixelType;
 
  itkConceptMacro(KernelGreaterThanComparableCheck, (Concept::GreaterThanComparable<KernelPixelType>));
 
protected:
  ErodeObjectMorphologyImageFilter();
  ~ErodeObjectMorphologyImageFilter() override = default;
  void
  PrintSelf(std::ostream & os, Indent indent) const override;

  void
  Evaluate(OutputNeighborhoodIteratorType & nit, const KernelType & kernel) override;
 
private:
  PixelType m_BackgroundValue{};
 
  // Default boundary condition for erosion filter, defaults to
  // NumericTraits<PixelType>::max()
  DefaultBoundaryConditionType m_ErodeBoundaryCondition{};
}; // end of class
} // end namespace itk
 
#ifndef ITK_MANUAL_INSTANTIATION
#  include "itkErodeObjectMorphologyImageFilter.hxx"
#endif
 
#endif