itkLabelVotingImageFilter.h

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

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkLabelVotingImageFilter.h,v $
  Language:  C++
  Date:      $Date: 2005/07/15 11:48:09 $
  Version:   $Revision: 1.2 $

  Copyright (c) 2002 Insight 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 __itkLabelVotingImageFilter_h
#define __itkLabelVotingImageFilter_h

#include "itkImage.h"
#include "itkImageToImageFilter.h"

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

  itkNewMacro(Self);

  itkTypeMacro(LabelVotingImageFilter, ImageToImageFilter);
  
  typedef typename TOutputImage::PixelType OutputPixelType;
  typedef typename TInputImage::PixelType InputPixelType;

  itkStaticConstMacro(ImageDimension, unsigned int,
                      TOutputImage::ImageDimension);
  
  typedef TInputImage  InputImageType;
  typedef TOutputImage OutputImageType;
  typedef typename InputImageType::ConstPointer InputImagePointer;
  typedef typename OutputImageType::Pointer     OutputImagePointer;
  
  typedef typename Superclass::OutputImageRegionType OutputImageRegionType;

  void SetLabelForUndecidedPixels( const OutputPixelType l )
  {
    this->m_LabelForUndecidedPixels = l;
    this->m_HasLabelForUndecidedPixels = true;
    this->Modified();
  }
  
  OutputPixelType GetLabelForUndecidedPixels() const
  {
    return this->m_LabelForUndecidedPixels;
  }
  
  void UnsetLabelForUndecidedPixels()
  {
    if ( this->m_HasLabelForUndecidedPixels )
      {
      this->m_HasLabelForUndecidedPixels = false;
      this->Modified();
      }
  }
  
protected:
  LabelVotingImageFilter() { this->m_HasLabelForUndecidedPixels = false; }
  virtual ~LabelVotingImageFilter() {}  

  void BeforeThreadedGenerateData ();
  void ThreadedGenerateData
  ( const OutputImageRegionType &outputRegionForThread, int threadId);
  
  void PrintSelf(std::ostream&, Indent) const;

  InputPixelType ComputeMaximumInputValue();

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

  OutputPixelType m_LabelForUndecidedPixels;
  bool m_HasLabelForUndecidedPixels;
  InputPixelType m_TotalLabelCount;
};
  
} // end namespace itk

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

#endif

---