itkErodeObjectMorphologyImageFilter.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 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_ASSIGN(ErodeObjectMorphologyImageFilter);

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

  itkNewMacro(Self);

  itkTypeMacro(ErodeObjectMorphologyImageFilter, ObjectMorphologyImageFilter);

  using PixelType = typename Superclass::PixelType;

  using KernelType = TKernel;

  using KernelIteratorType = typename KernelType::ConstIterator;

  using OutputNeighborhoodIteratorType = NeighborhoodIterator< TOutputImage >;

  using DefaultBoundaryConditionType = 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;

#ifdef ITK_USE_CONCEPT_CHECKING
  // Begin concept checking
  itkConceptMacro( KernelGreaterThanComparableCheck,
                   ( Concept::GreaterThanComparable< KernelPixelType > ) );
  // End concept checking
#endif

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