cmtkVoxelMatchingMetric_Type.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 __cmtkVoxelMatchingMetric_Type_h_included_
#define __cmtkVoxelMatchingMetric_Type_h_included_

#include <cmtkconfig.h>

#include <Base/cmtkTypes.h>
#include <Base/cmtkNumericTraits.h>
#include <Base/cmtkInterpolator.h>
#include <Base/cmtkUniformVolume.h>
#include <Base/cmtkTypedArray.h>

#include <algorithm>

namespace
cmtk
{


template<class T,ScalarDataType DT>
class VoxelMatchingMetric_Type
{
public:
  typedef VoxelMatchingMetric_Type<T,DT> Self;

  typedef T Exchange;
  
  class ImageData 
  {
  private:
    T Padding;

  public:
    T padding() const { return this->Padding; }
    
    T* Data;
    
    TypedArray::SmartPtr DataArray;

    Types::DataItem BinOffset;
    
    Types::DataItem BinWidth;
    
    Types::DataItemRange m_ValueRange;
    
    DataGrid::IndexType ImageDims;

    size_t NumberOfSamples;

    const Types::DataItemRange GetValueRange() const
    {
      return this->m_ValueRange;
    }

    byte ValueToIndex( const Types::DataItem value )
    {
      return static_cast<byte>( (std::min( std::max( value, this->m_ValueRange.m_LowerBound ), this->m_ValueRange.m_UpperBound )- this->BinOffset) / BinWidth );
    }
    
    ImageData() : Padding( NumericTraits<T>::DefaultPaddingValue ), Data( NULL ), DataArray( NULL )
    {
      nextJ = nextK = nextIJ = nextJK = nextIK = nextIJK = 0;
    }

    void AllocDataArray( const TypedArray* templateArray );

    size_t Init( const UniformVolume* volume, const size_t defNumBins, const Types::DataItemRange& bounds = Types::DataItemRange( -HUGE_VAL, HUGE_VAL ) );
    
    void Init( const UniformVolume* volume );
    
    void PrecomputeIncrements( const UniformVolume* volume );

    unsigned int nextJ;
    
    unsigned int nextIJ;
    
    unsigned int nextK;
    
    unsigned int nextIK;
    
    unsigned int nextJK;
    
    unsigned int nextIJK;
  };

  ImageData DataX;

  ImageData DataY;

  void SetDataX( const UniformVolume* volume )
  { 
    DataX.PrecomputeIncrements( volume ); 
  }

  void SetDataY( const UniformVolume* volume ) 
  { 
    DataY.PrecomputeIncrements( volume );
  }

  void SetDataXY( const UniformVolume* volumeX, const UniformVolume* volumeY ) 
  {
    DataX.PrecomputeIncrements( volumeX );
    DataY.PrecomputeIncrements( volumeY );
  }
};


} // namespace cmtk

#endif // #ifndef __cmtkVoxelMatchingMetric_Type_h_included_