cmtkImagePairSimilarityJointHistogram.h

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/*
//
//  Copyright 1997-2009 Torsten Rohlfing
//
//  Copyright 2004-2011 SRI International
//
//  This file is part of the Computational Morphometry Toolkit.
//
//  http://www.nitrc.org/projects/cmtk/
//
//  The Computational Morphometry Toolkit is free software: you can
//  redistribute it and/or modify it under the terms of the GNU General Public
//  License as published by the Free Software Foundation, either version 3 of
//  the License, or (at your option) any later version.
//
//  The Computational Morphometry Toolkit is distributed in the hope that it
//  will be useful, but WITHOUT ANY WARRANTY; without even the implied
//  warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//  GNU General Public License for more details.
//
//  You should have received a copy of the GNU General Public License along
//  with the Computational Morphometry Toolkit.  If not, see
//  <http://www.gnu.org/licenses/>.
//
//  $Revision: 2752 $
//
//  $LastChangedDate: 2011-01-17 11:33:31 -0800 (Mon, 17 Jan 2011) $
//
//  $LastChangedBy: torstenrohlfing $
//
*/

#ifndef __cmtkImagePairSimilarityJointHistogram_h_included_
#define __cmtkImagePairSimilarityJointHistogram_h_included_

#include <cmtkconfig.h>

#include <Registration/cmtkImagePairSimilarityMeasure.h>

#include <Base/cmtkUniformVolume.h>
#include <Base/cmtkFunctional.h>
#include <Base/cmtkJointHistogram.h>

#include <algorithm>

namespace
cmtk
{


#ifdef _MSC_VER
#pragma warning (disable:4521)
#endif

class ImagePairSimilarityJointHistogram :
  public ImagePairSimilarityMeasure
{
public:
  typedef ImagePairSimilarityJointHistogram Self;

  typedef SmartPointer<Self> SmartPtr;

  typedef ImagePairSimilarityMeasure Superclass;

  typedef Functional::ReturnType ReturnType;

  ImagePairSimilarityJointHistogram( UniformVolume::SmartConstPtr& refVolume, UniformVolume::SmartConstPtr& fltVolume, const Interpolators::InterpolationEnum interpolation = Interpolators::DEFAULT );

  ImagePairSimilarityJointHistogram() {};

  virtual ~ImagePairSimilarityJointHistogram() {};

  virtual void SetReferenceVolume( const UniformVolume::SmartConstPtr& refVolume );

  virtual void SetFloatingVolume( const UniformVolume::SmartConstPtr& fltVolume );

  virtual void Reset () 
  {
    this->m_JointHistogram.Reset();
  }

  template<class T> void Increment( const T a, const T b )
  {
    this->m_JointHistogram.Increment( static_cast<size_t>( a ), std::max<size_t>( 0, std::min<size_t>( this->m_NumberOfBinsY-1, static_cast<size_t>( b ) ) ) );
  }

  template<class T> void Decrement( const T a, const T b )
  {
    this->m_JointHistogram.Decrement( static_cast<size_t>( a ), std::max<size_t>( 0, std::min<size_t>( this->m_NumberOfBinsY-1, static_cast<size_t>( b ) ) ) );
  }

  void Add ( const Self& other )
  {
    this->m_JointHistogram.AddJointHistogram( other.m_JointHistogram );
  }

  void Remove ( const Self& other )
  {
    this->m_JointHistogram.RemoveJointHistogram( other.m_JointHistogram );
  }

  virtual Types::DataItem GetFloatingValueScaled( const Types::DataItem value ) const
  {
    return static_cast<Types::DataItem>( floor(this->m_ScaleFactorFloating*value+this->m_ScaleOffsetFloating) );
  }

protected:
  size_t m_NumberOfBinsX;

  size_t m_NumberOfBinsY;

  JointHistogram<unsigned int> m_JointHistogram;

private:
  UniformVolume::SmartPtr PrescaleData
  ( const UniformVolume::SmartConstPtr& volume, 
    size_t* numberOfBins, 
    Types::DataItem* scaleFactor, 
    Types::DataItem* scaleOffset 
    );

  Types::DataItem m_ScaleOffsetReference;

  Types::DataItem m_ScaleFactorReference;

  Types::DataItem m_ScaleOffsetFloating;

  Types::DataItem m_ScaleFactorFloating;
};


} // namespace cmtk

#endif // #ifndef __cmtkImagePairSimilarityJointHistogram_h_included_