itkAnchorErodeDilateLine.h

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

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkAnchorErodeDilateLine.h,v $
  Language:  C++
  Date:      $Date: 2008-10-20 16:32:08 $
  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 __itkAnchorErodeDilateLine_h
#define __itkAnchorErodeDilateLine_h

#include "itkAnchorHistogram.h"
#include "itkIndent.h"
namespace itk {

template<class TInputPix, class TFunction1, class TFunction2>
class ITK_EXPORT AnchorErodeDilateLine
{
public:

  typedef TInputPix InputImagePixelType;

  void DoLine(InputImagePixelType * buffer, InputImagePixelType * inbuffer, 
              unsigned bufflength);

  void SetSize(unsigned int size)
    {
    m_Size = size;
    }

  void PrintSelf(std::ostream &os, Indent indent) const;
  AnchorErodeDilateLine();
  ~AnchorErodeDilateLine()
    {
    delete m_Histo;
    }


private:
  unsigned int m_Size;
  TFunction1   m_TF1;
  TFunction2   m_TF2;

  bool         m_UseVec;

  typedef MorphologyHistogram<InputImagePixelType>               Histogram;
  typedef MorphologyHistogramVec<InputImagePixelType,TFunction1> VHistogram;
  typedef MorphologyHistogramMap<InputImagePixelType,TFunction1> MHistogram;

  bool StartLine(InputImagePixelType * buffer,
                 InputImagePixelType * inbuffer,
                 InputImagePixelType &Extreme,
                 Histogram &histo,
                 int &outLeftP,
                 int &outRightP,
                 int &inLeftP,
                 int &inRightP,
                 int middle, unsigned bufflength);

  void FinishLine(InputImagePixelType * buffer,
                  InputImagePixelType * inbuffer,
                  InputImagePixelType &Extreme,
                  Histogram &histo,
                  int &outLeftP,
                  int &outRightP,
                  int &inLeftP,
                  int &inRightP,
                  int middle, unsigned bufflength);

  bool UseVectorBasedHistogram()
    {
    // bool, short and char are acceptable for vector based algorithm: they do not require
    // too much memory. Other types are not usable with that algorithm
    return typeid(InputImagePixelType) == typeid(unsigned char)
        || typeid(InputImagePixelType) == typeid(signed char)
        || typeid(InputImagePixelType) == typeid(unsigned short)
        || typeid(InputImagePixelType) == typeid(signed short)
        || typeid(InputImagePixelType) == typeid(bool);
    }

  Histogram * m_Histo;

}; // end of class


} // end namespace itk


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

#endif

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