itkShapeDetectionLevelSetFunction.h

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

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkShapeDetectionLevelSetFunction.h,v $
  Language:  C++
  Date:      $Date: 2009-01-27 19:30:15 $
  Version:   $Revision: 1.12 $

  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 __itkShapeDetectionLevelSetFunction_h
#define __itkShapeDetectionLevelSetFunction_h

#include "itkSegmentationLevelSetFunction.h"

namespace itk {

template <class TImageType, class TFeatureImageType = TImageType>
class ITK_EXPORT ShapeDetectionLevelSetFunction
  : public SegmentationLevelSetFunction<TImageType, TFeatureImageType>
{
public:
  typedef ShapeDetectionLevelSetFunction Self;
  typedef SegmentationLevelSetFunction<TImageType, TFeatureImageType>
                                         Superclass;
  typedef SmartPointer<Self>             Pointer;
  typedef SmartPointer<const Self>       ConstPointer;
  typedef TFeatureImageType              FeatureImageType;

  itkNewMacro(Self);

  itkTypeMacro( ShapeDetectionLevelSetFunction, SegmentationLevelSetFunction );

  typedef typename Superclass::ImageType         ImageType;
  typedef typename Superclass::NeighborhoodType  NeighborhoodType;
  typedef typename Superclass::ScalarValueType   ScalarValueType;
  typedef typename Superclass::FeatureScalarType FeatureScalarType;
  typedef typename Superclass::RadiusType        RadiusType;
  typedef typename Superclass::FloatOffsetType   FloatOffsetType;
  typedef typename Superclass::GlobalDataStruct  GlobalDataStruct;

  itkStaticConstMacro(ImageDimension, unsigned int,
                      Superclass::ImageDimension);

  virtual void CalculateSpeedImage();

  virtual ScalarValueType CurvatureSpeed(const NeighborhoodType & neighborhood,
                                         const FloatOffsetType & offset, GlobalDataStruct *gd ) const
  { return PropagationSpeed( neighborhood, offset, gd ); }

  virtual void Initialize(const RadiusType &r)
    {
    Superclass::Initialize(r);
    
    this->SetAdvectionWeight( NumericTraits<ScalarValueType>::Zero );
    this->SetPropagationWeight( NumericTraits<ScalarValueType>::One );
    this->SetCurvatureWeight( NumericTraits<ScalarValueType>::One );
    }
  
protected:
  ShapeDetectionLevelSetFunction()
    {
    this->SetAdvectionWeight( NumericTraits<ScalarValueType>::Zero );
    this->SetPropagationWeight( NumericTraits<ScalarValueType>::One );
    this->SetCurvatureWeight( NumericTraits<ScalarValueType>::One );
    }
  virtual ~ShapeDetectionLevelSetFunction() {}

  ShapeDetectionLevelSetFunction(const Self&); //purposely not implemented
  void operator=(const Self&); //purposely not implemented
  
};
  
} // end namespace itk

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

#endif

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