itkBinaryThinningImageFilter.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 itkBinaryThinningImageFilter_h
#define itkBinaryThinningImageFilter_h
 
#include "itkNeighborhoodIterator.h"
#include "itkImageToImageFilter.h"
#include "itkImageRegionIteratorWithIndex.h"
 
namespace itk
{
 
template <typename TInputImage, typename TOutputImage>
class ITK_TEMPLATE_EXPORT BinaryThinningImageFilter : public ImageToImageFilter<TInputImage, TOutputImage>
{
public:
  ITK_DISALLOW_COPY_AND_MOVE(BinaryThinningImageFilter);

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

  itkNewMacro(Self);

  itkOverrideGetNameOfClassMacro(BinaryThinningImageFilter);

  using InputImageType = TInputImage;

  using OutputImageType = TOutputImage;

  using RegionType = typename InputImageType::RegionType;

  using IndexType = typename RegionType::IndexType;

  using PixelType = typename InputImageType::PixelType;

  using SizeType = typename RegionType::SizeType;

  using InputImagePointer = typename InputImageType::ConstPointer;

  using OutputImagePointer = typename OutputImageType::Pointer;

  using typename Superclass::OutputImagePixelType;

  using NeighborhoodIteratorType = NeighborhoodIterator<TInputImage>;

  OutputImageType *
  GetThinning();

  static constexpr unsigned int InputImageDimension = TInputImage::ImageDimension;
  static constexpr unsigned int OutputImageDimension = TOutputImage::ImageDimension;
 
  itkConceptMacro(SameDimensionCheck, (Concept::SameDimension<InputImageDimension, OutputImageDimension>));
  itkConceptMacro(InputAdditiveOperatorsCheck, (Concept::AdditiveOperators<PixelType>));
  itkConceptMacro(InputConvertibleToIntCheck, (Concept::Convertible<PixelType, int>));
  itkConceptMacro(IntConvertibleToInputCheck, (Concept::Convertible<int, PixelType>));
  itkConceptMacro(SameTypeCheck, (Concept::SameType<PixelType, typename TOutputImage::PixelType>));
 
protected:
  BinaryThinningImageFilter();
  ~BinaryThinningImageFilter() override = default;

  void
  GenerateData() override;

  void
  PrepareData();

  void
  ComputeThinImage();
}; // end of BinaryThinningImageFilter
   // class
} // end namespace itk
 
#ifndef ITK_MANUAL_INSTANTIATION
#  include "itkBinaryThinningImageFilter.hxx"
#endif
 
#endif