itkMaskFeaturePointSelectionFilter.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 itkMaskFeaturePointSelectionFilter_h
#define itkMaskFeaturePointSelectionFilter_h

#include "itkImageToMeshFilter.h"
#include "itkDefaultDynamicMeshTraits.h"
#include "itkImage.h"
#include "itkPointSet.h"
#include "itkImageRegionConstIterator.h"
#include "itkConstNeighborhoodIterator.h"
#include "itkMatrix.h"
#include "itkConceptChecking.h"
#include <vector>


namespace itk
{
template<
  typename TImage,
  typename TMask = TImage,
  typename TFeatures = PointSet< Matrix< SpacePrecisionType, TImage::ImageDimension, TImage::ImageDimension>, TImage::ImageDimension > >
class ITK_TEMPLATE_EXPORT MaskFeaturePointSelectionFilter: public ImageToMeshFilter< TImage, TFeatures >
{
public:
  ITK_DISALLOW_COPY_AND_ASSIGN(MaskFeaturePointSelectionFilter);

  using Superclass = ImageToMeshFilter< TImage, TFeatures >;
  using Self = MaskFeaturePointSelectionFilter;
  using Pointer = SmartPointer< Self >;
  using ConstPointer = SmartPointer< const Self >;

  itkNewMacro(Self);

  itkTypeMacro(MaskFeaturePointSelectionFilter, ImageToMeshFilter);

  static constexpr unsigned ImageDimension = 3u;

  using RegionType = ImageRegion< ImageDimension >;
  using SizeType = Size< ImageDimension >;
  using IndexType = Index< ImageDimension >;
  using OffsetType = Offset< ImageDimension >;

  using ImageType = TImage;
  using ImageConstPointer = typename ImageType::ConstPointer;
  using ImagePixelType = typename ImageType::PixelType;

  using MaskType = TMask;
  using MaskConstPointer = typename MaskType::ConstPointer;
  using MaskPixelType = typename MaskType::PixelType;

  using FeaturePointsType = TFeatures;
  using FeaturePointsPointer = typename FeaturePointsType::Pointer;
  using StructureTensorType = typename FeaturePointsType::PixelType;
  using PointType = typename FeaturePointsType::PointType;

  enum
  {
    VERTEX_CONNECTIVITY = 0,
    EDGE_CONNECTIVITY = 1,
    FACE_CONNECTIVITY = 2
  };

  itkSetMacro(NonConnectivity, unsigned);
  itkGetMacro(NonConnectivity, unsigned);

  itkSetInputMacro(MaskImage, MaskType);
  itkGetInputMacro(MaskImage, MaskType);

  itkSetMacro(BlockRadius, SizeType);
  itkGetConstReferenceMacro(BlockRadius, SizeType);

  itkSetMacro(ComputeStructureTensors, bool);
  itkGetMacro(ComputeStructureTensors, bool);
  itkBooleanMacro(ComputeStructureTensors);

  itkSetClampMacro(SelectFraction, double, 0, 1);
  itkGetMacro(SelectFraction, double);

#ifdef ITK_USE_CONCEPT_CHECKING
  // Begin concept checking
  itkConceptMacro( ImageDimensionShouldBe3,
                   ( Concept::SameDimension< TImage::ImageDimension, 3u > ) );
  itkConceptMacro( MaskDimensionShouldBe3,
                   ( Concept::SameDimension< TMask::ImageDimension, 3u > ) );
  itkConceptMacro( PointDimensionShouldBe3,
                   ( Concept::SameDimension< TFeatures::PointType::PointDimension, 3u > ) );
  // End concept checking
#endif

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

  void GenerateData() override;

  void ComputeConnectivityOffsets();

private:
  unsigned                   m_NonConnectivity;
  std::vector< OffsetType >  m_NonConnectivityOffsets;
  SizeType                   m_BlockRadius;
  double                     m_SelectFraction;
  bool                       m_ComputeStructureTensors;
};
} // end namespace itk

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

#endif