itkBinaryThinningImageFilter3D.h

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/*=========================================================================
This file is part of CustusX, an Image Guided Therapy Application.

Copyright (c) 2008-2014, SINTEF Department of Medical Technology
All rights reserved.

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   this list of conditions and the following disclaimer.

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   may be used to endorse or promote products derived from this software 
   without specific prior written permission.

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#ifndef __itkBinaryThinningImageFilter3D_h
#define __itkBinaryThinningImageFilter3D_h

#include <itkNeighborhoodIterator.h>
#include <itkImageToImageFilter.h>
#include <itkImageRegionIteratorWithIndex.h>
#include <itkConstantBoundaryCondition.h>

namespace itk
{
template <class TInputImage,class TOutputImage>
class BinaryThinningImageFilter3D :
    public ImageToImageFilter<TInputImage,TOutputImage>
{
public:
  typedef BinaryThinningImageFilter3D    Self;
  typedef ImageToImageFilter<TInputImage,TOutputImage> Superclass;
  typedef SmartPointer<Self> Pointer;
  typedef SmartPointer<const Self> ConstPointer;

  itkNewMacro(Self);

  itkTypeMacro( BinaryThinningImageFilter3D, ImageToImageFilter );

  typedef   TInputImage       InputImageType;

  typedef   TOutputImage      OutputImageType;

  typedef typename InputImageType::RegionType RegionType;

  typedef typename RegionType::IndexType  IndexType;

  typedef typename InputImageType::PixelType InputImagePixelType ;

  typedef typename OutputImageType::PixelType OutputImagePixelType ;

  typedef typename RegionType::SizeType SizeType;

  typedef typename InputImageType::ConstPointer InputImagePointer;

  typedef typename OutputImageType::Pointer OutputImagePointer;
  
  typedef ConstantBoundaryCondition< TInputImage > ConstBoundaryConditionType;
  
  typedef NeighborhoodIterator<TInputImage, ConstBoundaryConditionType> NeighborhoodIteratorType;
  
  typedef typename NeighborhoodIteratorType::NeighborhoodType NeighborhoodType;

  OutputImageType * GetThinning(void);

  itkStaticConstMacro(InputImageDimension, unsigned int,
                      TInputImage::ImageDimension );
  itkStaticConstMacro(OutputImageDimension, unsigned int,
                      TOutputImage::ImageDimension );

#ifdef ITK_USE_CONCEPT_CHECKING

  itkConceptMacro(SameDimensionCheck,
    (Concept::SameDimension<InputImageDimension, 3>));
  itkConceptMacro(SameTypeCheck,
    (Concept::SameType<InputImagePixelType, OutputImagePixelType>));
  itkConceptMacro(InputAdditiveOperatorsCheck,
    (Concept::AdditiveOperators<InputImagePixelType>));
  itkConceptMacro(InputConvertibleToIntCheck,
    (Concept::Convertible<InputImagePixelType, int>));
  itkConceptMacro(IntConvertibleToInputCheck,
    (Concept::Convertible<int, InputImagePixelType>));
  itkConceptMacro(InputIntComparableCheck,
    (Concept::Comparable<InputImagePixelType, int>));
#endif

protected:
  BinaryThinningImageFilter3D();
  virtual ~BinaryThinningImageFilter3D() {};
  void PrintSelf(std::ostream& os, Indent indent) const;

  void GenerateData();

  void PrepareData();

  void ComputeThinImage();
  
  bool isEulerInvariant(NeighborhoodType neighbors, int *LUT);
  void fillEulerLUT(int *LUT);  
  bool isSimplePoint(NeighborhoodType neighbors);
  void Octree_labeling(int octant, int label, int *cube);


private:   
  BinaryThinningImageFilter3D(const Self&); //purposely not implemented
  void operator=(const Self&); //purposely not implemented

}; // end of BinaryThinningImageFilter3D class

} //end namespace itk

#ifndef ITK_MANUAL_INSTANTIATION
#include "itkBinaryThinningImageFilter3D.txx"
#endif

#endif