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 MaskFeaturePointSelectionFilter: public ImageToMeshFilter< TImage, TFeatures >
{
public:
  typedef ImageToMeshFilter< TImage, TFeatures >  Superclass;
  typedef MaskFeaturePointSelectionFilter         Self;
  typedef SmartPointer< Self >                    Pointer;
  typedef SmartPointer< const Self >              ConstPointer;

  itkNewMacro(Self);

  itkTypeMacro(MaskFeaturePointSelectionFilter, ImageToMeshFilter);

  itkStaticConstMacro(ImageDimension, unsigned, 3u);

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

  typedef TImage                            ImageType;
  typedef typename ImageType::ConstPointer  ImageConstPointer;
  typedef typename ImageType::PixelType     ImagePixelType;

  typedef TMask                            MaskType;
  typedef typename MaskType::ConstPointer  MaskConstPointer;
  typedef typename MaskType::PixelType     MaskPixelType;

  typedef TFeatures                              FeaturePointsType;
  typedef typename FeaturePointsType::Pointer    FeaturePointsPointer;
  typedef typename FeaturePointsType::PixelType  StructureTensorType;
  typedef typename FeaturePointsType::PointType  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();
  void PrintSelf(std::ostream & os, Indent indent) const;

  void GenerateData();

  void ComputeConnectivityOffsets( void ) throw ( ExceptionObject );

private:
  // purposely not implemented
  MaskFeaturePointSelectionFilter(const MaskFeaturePointSelectionFilter &);
  void operator=(const MaskFeaturePointSelectionFilter &);

  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