GradientImage.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   : ICLFilter/src/ICLFilter/GradientImage.h                **
** Module : ICLFilter                                              **
** Authors: Christof Elbrechter                                    **
**                                                                 **
**                                                                 **
** 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.LGPL **
** 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 <ICLUtils/CompatMacros.h>
#include <ICLCore/Img.h>

namespace icl{
  namespace filter{


    class ICLFilter_API GradientImage{
      public:

      enum calculationMode{
        calculateXYOnly=0,    
        calculateIntensity=1, 
        calculateAngle=2,     
        calculateAll=3        
      };

      GradientImage(){}

      void update(const core::ImgBase *src, calculationMode mode=calculateAll);

      const core::Img16s &getGradXImage() const{ return m_oX; }

      const core::Img16s &getGradYImage() const{ return m_oY; }

      const core::Img32f &getGradIntensityImage() const { return m_oI; }

      const core::Img32f &getGradAngleImage() const { return m_oA; }

      void normalize();
      private:
      core::Img16s m_oBuf;
      core::Img16s m_oX,m_oY;
      core::Img32f m_oI,m_oA;
    };
  } // namespace filter
}