RunLengthEncoder.h

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/********************************************************************
**                Image Component Library (ICL)                    **
**                                                                 **
** Copyright (C) 2006-2013 CITEC, University of Bielefeld          **
**                         Neuroinformatics Group                  **
** Website: www.iclcv.org and                                      **
**          http://opensource.cit-ec.de/projects/icl               **
**                                                                 **
** File   : ICLCV/src/ICLCV/RunLengthEncoder.h                     **
** Module : ICLCV                                                  **
** Authors: Christof Elbrechter, Erik Weitnauer                    **
**                                                                 **
**                                                                 **
** GNU LESSER GENERAL PUBLIC LICENSE                               **
** This file may be used under the terms of the GNU Lesser General **
** Public License version 3.0 as published by the                  **
**                                                                 **
** Free Software Foundation and appearing in the file LICENSE.GPL  **
** included in the packaging of this file.  Please review the      **
** following information to ensure the license requirements will   **
** be met: http://www.gnu.org/licenses/lgpl-3.0.txt                **
**                                                                 **
** The development of this software was supported by the           **
** Excellence Cluster EXC 277 Cognitive Interaction Technology.    **
** The Excellence Cluster EXC 277 is a grant of the Deutsche       **
** Forschungsgemeinschaft (DFG) in the context of the German       **
** Excellence Initiative.                                          **
**                                                                 **
********************************************************************/


#pragma once

#include <ICLCV/WorkingLineSegment.h>
#include <ICLUtils/Size.h>
#include <ICLUtils/Uncopyable.h>
#include <ICLCore/Img.h>
#include <vector>

namespace icl { 
  namespace cv{
  

    class RunLengthEncoder{
      typedef WorkingLineSegment WLS;
      
      std::vector<WLS> m_data;
      
      std::vector<WLS*> m_ends;
      
      utils::Rect m_imageROI;
  
      template<class T>
      void encode_internal(const core::Img<T> &image);
  
      void prepare(const utils::Rect &roi);
      
      void resetLineSegments();
  
      public:
      
      void encode(const core::ImgBase *image);
      

      inline WorkingLineSegment *begin(int row){
        return &m_data[row*m_imageROI.width];
      }
      

      inline const WorkingLineSegment *begin(int row) const{
        return &m_data[row*m_imageROI.width];
      }
      

      inline WorkingLineSegment *end(int row){
        return m_ends[row]; 
      }
  

      inline const WorkingLineSegment *end(int row) const {
        return m_ends[row]; 
      }
    };
  
  } // namespace cv
}