itkApproximateSignedDistanceMapImageFilter.h

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/*=========================================================================

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkApproximateSignedDistanceMapImageFilter.h,v $
  Language:  C++
  Date:      $Date: 2006/03/16 13:35:01 $
  Version:   $Revision: 1.3 $

  Copyright (c) Insight Software Consortium. All rights reserved.
  See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.

     This software is distributed WITHOUT ANY WARRANTY; without even 
     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR 
     PURPOSE.  See the above copyright notices for more information.

=========================================================================*/
#ifndef __itkApproximateSignedDistanceMapImageFilter_h
#define __itkApproximateSignedDistanceMapImageFilter_h

#include "itkImageToImageFilter.h"
#include "itkFastChamferDistanceImageFilter.h"
#include "itkIsoContourDistanceImageFilter.h"

namespace itk {

template<class TInputImage, class TOutputImage>
class ITK_EXPORT ApproximateSignedDistanceMapImageFilter : public ImageToImageFilter<TInputImage, TOutputImage>
{
public:
  typedef ApproximateSignedDistanceMapImageFilter  Self;
  typedef ImageToImageFilter<TInputImage, TOutputImage> Superclass;
  typedef SmartPointer<Self> Pointer;
  typedef SmartPointer<const Self> ConstPointer;

  itkTypeMacro(ApproximateSignedDistanceMapImageFilter, ImageToImageFilter) ;

  itkNewMacro(Self) ;

  typedef TInputImage InputImageType;

  typedef TOutputImage OutputImageType;

  typedef typename InputImageType::PixelType InputPixelType;

  typedef typename OutputImageType::PixelType OutputPixelType;

  typedef typename OutputImageType::SizeType OutputSizeType;
  typedef typename OutputSizeType::SizeValueType OutputSizeValueType;

  itkStaticConstMacro(InputImageDimension, unsigned int,
                      InputImageType::ImageDimension);

  typedef typename InputImageType::ConstPointer InputImagePointer;

  typedef typename OutputImageType::Pointer OutputImagePointer;

  itkSetMacro(InsideValue, InputPixelType);
  itkGetMacro(InsideValue, InputPixelType);

  itkSetMacro(OutsideValue, InputPixelType);
  itkGetMacro(OutsideValue, InputPixelType);

#ifdef ITK_USE_CONCEPT_CHECKING

  itkConceptMacro(InputEqualityComparableCheck,
    (Concept::EqualityComparable<typename InputImageType::PixelType>));

#endif

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

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

  typedef IsoContourDistanceImageFilter<InputImageType, OutputImageType> IsoContourType;
  typedef FastChamferDistanceImageFilter<OutputImageType, OutputImageType> ChamferType;
  typename IsoContourType::Pointer m_IsoContourFilter;
  typename ChamferType::Pointer m_ChamferFilter;
  
  InputPixelType m_InsideValue;
  InputPixelType m_OutsideValue;
  
};

} // end of namespace itk 

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

#endif

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