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 <vector>


namespace itk
{
template<
  class TImage,
  class TMask = TImage,
  class TFeatures = PointSet< Matrix< double, TImage::ImageDimension, TImage::ImageDimension>, TImage::ImageDimension > >
class ITK_EXPORT MaskFeaturePointSelectionFilter;

template<
  class TImagePixel,
  class TMaskPixel,
  class TTensorValueType,
  class TFeaturesTraits,
  unsigned VImageDimension >
class ITK_EXPORT MaskFeaturePointSelectionFilter<
  Image< TImagePixel, VImageDimension >,
  Image< TMaskPixel, VImageDimension >,
  PointSet< Matrix< TTensorValueType, VImageDimension, VImageDimension>, VImageDimension, TFeaturesTraits > >:
public ImageToMeshFilter<
  Image< TImagePixel, VImageDimension >,
  PointSet< Matrix< TTensorValueType, VImageDimension, VImageDimension>, VImageDimension, TFeaturesTraits > >
{
public:
  typedef MaskFeaturePointSelectionFilter  Self;
  typedef ImageToMeshFilter<
    Image< TImagePixel, VImageDimension >,
    PointSet< Matrix< TTensorValueType, VImageDimension, VImageDimension>, VImageDimension, TFeaturesTraits >
  >                                        Superclass;
  typedef SmartPointer< Self >             Pointer;
  typedef SmartPointer< const Self >       ConstPointer;

  itkNewMacro(Self);

  itkTypeMacro(MaskFeaturePointSelectionFilter, ImageToMeshFilter);

  itkStaticConstMacro(ImageDimension, unsigned, VImageDimension);

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

  typedef Image< TImagePixel, VImageDimension >                ImageType;
  typedef typename ImageType::ConstPointer                     ImageConstPointer;
  typedef typename ImageType::PixelType                        ImagePixelType;

  typedef Image< TMaskPixel, VImageDimension >                 MaskType;
  typedef typename MaskType::ConstPointer                      MaskConstPointer;
  typedef typename MaskType::PixelType                         MaskPixelType;

  typedef PointSet<
    Matrix< TTensorValueType, VImageDimension, VImageDimension>,
    VImageDimension,
    TFeaturesTraits
  >                                              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
  };

  void SetNonConnectivity( unsigned connect ) throw ( ExceptionObject );
  itkGetConstMacro(NonConnectivity, unsigned);

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

  itkSetMacro(BlockRadius, SizeType);
  itkGetConstMacro(BlockRadius, SizeType);

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

  itkSetMacro(SelectFraction, double);
  itkGetConstMacro(SelectFraction, double);

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

private:
  //purposely not implemented purposely
  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