itkSignedDanielssonDistanceMapImageFilter.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 itkSignedDanielssonDistanceMapImageFilter_h
#define itkSignedDanielssonDistanceMapImageFilter_h

#include "itkDanielssonDistanceMapImageFilter.h"
#include "itkSubtractImageFilter.h"

//Simple functor to invert an image for Outside Danielsson distance map
namespace itk
{
namespace Functor
{
template< typename InputPixelType >
class ITK_TEMPLATE_EXPORT InvertIntensityFunctor
{
public:
  InputPixelType operator()(InputPixelType input) const
  {
    if ( input )
      {
      return NumericTraits< InputPixelType >::ZeroValue();
      }
    else
      {
      return NumericTraits< InputPixelType >::OneValue();
      }
  }
};
}
}

namespace itk
{
template< typename TInputImage,
          typename TOutputImage,
          typename TVoronoiImage = TInputImage >
class ITK_TEMPLATE_EXPORT SignedDanielssonDistanceMapImageFilter:
  public ImageToImageFilter< TInputImage, TOutputImage >
{
public:
  ITK_DISALLOW_COPY_AND_ASSIGN(SignedDanielssonDistanceMapImageFilter);

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

  itkNewMacro(Self);

  itkTypeMacro(SignedDanielssonDistanceMapImageFilter, ImageToImageFilter);

  using InputImageType = TInputImage;

  using OutputImageType = TOutputImage;

  using RegionType = typename InputImageType::RegionType;

  using IndexType = typename RegionType::IndexType;

  using OffsetType = typename InputImageType::OffsetType;

  using PixelType = typename InputImageType::PixelType;

  using SizeType = typename RegionType::SizeType;

  static constexpr unsigned int InputImageDimension = InputImageType::ImageDimension;

  using VectorImageType = Image< OffsetType,
                 Self::InputImageDimension >;

  using InputImagePointer = typename InputImageType::ConstPointer;

  using OutputImagePointer = typename OutputImageType::Pointer;

  using VectorImagePointer = typename VectorImageType::Pointer;

  using VoronoiImageType = TVoronoiImage;
  using VoronoiImagePointer = typename VoronoiImageType::Pointer;
  using VoronoiPixelType = typename VoronoiImageType::PixelType;

  using DataObjectPointer = typename Superclass::DataObjectPointer;

  itkSetMacro(SquaredDistance, bool);

  itkGetConstReferenceMacro(SquaredDistance, bool);

  itkBooleanMacro(SquaredDistance);

  itkSetMacro(UseImageSpacing, bool);

  itkGetConstReferenceMacro(UseImageSpacing, bool);

  itkBooleanMacro(UseImageSpacing);

  itkSetMacro(InsideIsPositive, bool);

  itkGetConstReferenceMacro(InsideIsPositive, bool);

  itkBooleanMacro(InsideIsPositive);

  VoronoiImageType * GetVoronoiMap();

  OutputImageType * GetDistanceMap();

  VectorImageType * GetVectorDistanceMap();

  using DataObjectPointerArraySizeType = ProcessObject::DataObjectPointerArraySizeType;
  using Superclass::MakeOutput;
  DataObjectPointer MakeOutput(DataObjectPointerArraySizeType idx) override;

#ifdef ITK_USE_CONCEPT_CHECKING
  // Begin concept checking
  itkConceptMacro( IntConvertibleToInputCheck,
                   ( Concept::Convertible< int, PixelType > ) );
  itkConceptMacro( InputHasNumericTraitsCheck,
                   ( Concept::HasNumericTraits< PixelType > ) );
  // End concept checking
#endif

protected:
  SignedDanielssonDistanceMapImageFilter();
  ~SignedDanielssonDistanceMapImageFilter() override = default;
  void PrintSelf(std::ostream & os, Indent indent) const override;

  void GenerateData() override;

private:
  bool m_SquaredDistance;
  bool m_UseImageSpacing;
  bool m_InsideIsPositive; // ON is treated as inside pixels
};                         // end of SignedDanielssonDistanceMapImageFilter
                           // class
} //end namespace itk

#ifndef ITK_MANUAL_INSTANTIATION
#include "itkSignedDanielssonDistanceMapImageFilter.hxx"
#endif

#endif