itkSignedMaurerDistanceMapImageFilter.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 itkSignedMaurerDistanceMapImageFilter_h
#define itkSignedMaurerDistanceMapImageFilter_h
 
#include "itkImageToImageFilter.h"
 
namespace itk
{
template <typename TInputImage, typename TOutputImage>
class ITK_TEMPLATE_EXPORT SignedMaurerDistanceMapImageFilter : public ImageToImageFilter<TInputImage, TOutputImage>
{
public:
  ITK_DISALLOW_COPY_AND_MOVE(SignedMaurerDistanceMapImageFilter);
 
  static constexpr unsigned int InputImageDimension = TInputImage::ImageDimension;
  static constexpr unsigned int OutputImageDimension = TOutputImage::ImageDimension;
  static constexpr unsigned int ImageDimension = TOutputImage::ImageDimension;
 
  using InputImageType = TInputImage;
  using InputImageConstPointer = typename InputImageType::ConstPointer;
 
  using OutputImageType = TOutputImage;
  using OutputImagePointer = typename OutputImageType::Pointer;
 
  using Self = SignedMaurerDistanceMapImageFilter;
  using Superclass = ImageToImageFilter<InputImageType, OutputImageType>;
 
  using Pointer = SmartPointer<Self>;
  using ConstPointer = SmartPointer<const Self>;
 
  itkNewMacro(Self);
 
  itkOverrideGetNameOfClassMacro(SignedMaurerDistanceMapImageFilter);
 
  using InputRegionType = typename InputImageType::RegionType;
  using OutputRegionType = typename OutputImageType::RegionType;
 
  using InputPixelType = typename InputImageType::PixelType;
  using OutputPixelType = typename OutputImageType::PixelType;
 
  using InputSizeType = typename InputImageType::SizeType;
  using InputSizeValueType = typename InputImageType::SizeValueType;
  using OutputSizeType = typename OutputImageType::SizeType;
  using OutputSizeValueType = typename OutputImageType::SizeValueType;
 
  using InputIndexType = typename InputImageType::IndexType;
  using InputIndexValueType = typename InputImageType::IndexValueType;
  using OutputIndexType = typename OutputImageType::IndexType;
  using OutputIndexValueType = typename OutputImageType::IndexValueType;
 
  using InputSpacingType = typename InputImageType::SpacingType;
  using OutputSpacingType = typename OutputImageType::SpacingType;
  using OutputImageRegionType = typename OutputImageType::RegionType;
 
  itkSetMacro(SquaredDistance, bool);
 
  itkGetConstReferenceMacro(SquaredDistance, bool);
 
  itkBooleanMacro(SquaredDistance);
 
  itkSetMacro(InsideIsPositive, bool);
 
  itkGetConstReferenceMacro(InsideIsPositive, bool);
 
  itkBooleanMacro(InsideIsPositive);
 
  itkSetMacro(UseImageSpacing, bool);
 
  itkGetConstReferenceMacro(UseImageSpacing, bool);
 
  itkBooleanMacro(UseImageSpacing);
 
  itkSetMacro(BackgroundValue, InputPixelType);
  itkGetConstReferenceMacro(BackgroundValue, InputPixelType);
#ifdef ITK_USE_CONCEPT_CHECKING
  // Begin concept checking
  itkConceptMacro(IntConvertibleToInputCheck, (Concept::Convertible<int, InputPixelType>));
  itkConceptMacro(InputHasNumericTraitsCheck, (Concept::HasNumericTraits<InputPixelType>));
  itkConceptMacro(OutputImagePixelTypeIsFloatingPointCheck, (Concept::IsFloatingPoint<OutputPixelType>));
  // End concept checking
#endif
 
protected:
  SignedMaurerDistanceMapImageFilter();
  ~SignedMaurerDistanceMapImageFilter() override = default;
 
  void
  PrintSelf(std::ostream & os, Indent indent) const override;
 
  void
  GenerateData() override;
 
  unsigned int
  SplitRequestedRegion(unsigned int i, unsigned int num, OutputImageRegionType & splitRegion) override;
 
  void
  ThreadedGenerateData(const OutputImageRegionType &, ThreadIdType) override;
 
  void
  DynamicThreadedGenerateData(const OutputImageRegionType &) override
  {
    itkExceptionMacro("This class requires threadId so it must use classic multi-threading model");
  }
 
private:
  void
       Voronoi(unsigned int, OutputIndexType idx, OutputImageType * output);
  bool Remove(OutputPixelType, OutputPixelType, OutputPixelType, OutputPixelType, OutputPixelType, OutputPixelType);
 
  InputPixelType   m_BackgroundValue{};
  InputSpacingType m_Spacing{};
 
  unsigned int m_CurrentDimension{ 0 };
 
  bool m_InsideIsPositive{ false };
  bool m_UseImageSpacing{ true };
  bool m_SquaredDistance{ false };
 
  const InputImageType * m_InputCache{};
};
} // end namespace itk
 
#ifndef ITK_MANUAL_INSTANTIATION
#  include "itkSignedMaurerDistanceMapImageFilter.hxx"
#endif
 
#endif