itkGrayscaleFunctionErodeImageFilter.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 itkGrayscaleFunctionErodeImageFilter_h
#define itkGrayscaleFunctionErodeImageFilter_h
 
#include "itkMorphologyImageFilter.h"
 
namespace itk
{
template <typename TInputImage, typename TOutputImage, typename TKernel>
class ITK_TEMPLATE_EXPORT GrayscaleFunctionErodeImageFilter
  : public MorphologyImageFilter<TInputImage, TOutputImage, TKernel>
{
public:
  ITK_DISALLOW_COPY_AND_MOVE(GrayscaleFunctionErodeImageFilter);

  using Self = GrayscaleFunctionErodeImageFilter;
  using Superclass = MorphologyImageFilter<TInputImage, TOutputImage, TKernel>;
  using Pointer = SmartPointer<Self>;
  using ConstPointer = SmartPointer<const Self>;

  itkNewMacro(Self);

  itkOverrideGetNameOfClassMacro(GrayscaleFunctionErodeImageFilter);

  using typename Superclass::PixelType;

  using typename Superclass::KernelIteratorType;

  using typename Superclass::NeighborhoodIteratorType;

  using typename Superclass::KernelType;

  using typename Superclass::DefaultBoundaryConditionType;

  static constexpr unsigned int InputImageDimension = TInputImage::ImageDimension;
  static constexpr unsigned int OutputImageDimension = TOutputImage::ImageDimension;
  static constexpr unsigned int KernelDimension = TKernel::NeighborhoodDimension;

  using KernelPixelType = typename TKernel::PixelType;
 
  itkConceptMacro(SameDimensionCheck1, (Concept::SameDimension<InputImageDimension, OutputImageDimension>));
  itkConceptMacro(SameDimensionCheck2, (Concept::SameDimension<InputImageDimension, KernelDimension>));
  itkConceptMacro(InputConvertibleToOutputCheck, (Concept::Convertible<PixelType, typename TOutputImage::PixelType>));
  itkConceptMacro(KernelConvertibleToInputCheck, (Concept::Convertible<KernelPixelType, PixelType>));
  itkConceptMacro(InputAdditiveOperatorsCheck, (Concept::AdditiveOperators<PixelType>));
  itkConceptMacro(InputLessThanComparableCheck, (Concept::LessThanComparable<PixelType>));
  itkConceptMacro(KernelGreaterThanComparableCheck, (Concept::GreaterThanComparable<KernelPixelType>));
 
protected:
  GrayscaleFunctionErodeImageFilter();
  ~GrayscaleFunctionErodeImageFilter() override = default;

  PixelType
  Evaluate(const NeighborhoodIteratorType & nit,
           const KernelIteratorType         kernelBegin,
           const KernelIteratorType         kernelEnd) override;
 
private:
  // 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 "itkGrayscaleFunctionErodeImageFilter.hxx"
#endif
 
#endif