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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: $RCSfile: itkNeighborhoodInnerProduct.txx,v $
Language: C++
Date: $Date: 2003-12-17 14:39:39 $
Version: $Revision: 1.12 $
Copyright (c) Insight Software 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 _itkNeighborhoodInnerProduct_txx
#define _itkNeighborhoodInnerProduct_txx
#include "itkNeighborhoodInnerProduct.h"
#include "itkNumericTraits.h"
namespace itk {
template<class TImage, class TOperator, class TComputation>
typename NeighborhoodInnerProduct<TImage, TOperator, TComputation>::OutputPixelType
NeighborhoodInnerProduct<TImage, TOperator, TComputation>
::operator()(const std::slice &s,
const ConstNeighborhoodIterator<TImage> &it,
const OperatorType &op) const
{
typename OperatorType::ConstIterator o_it;
OutputPixelType sum = NumericTraits<OutputPixelType>::Zero;
o_it = op.Begin();
const typename OperatorType::ConstIterator op_end = op.End();
const unsigned int start = static_cast<unsigned int>( s.start() );
const unsigned int stride = static_cast<unsigned int>( s.stride() );
for ( unsigned int i = start; o_it < op_end; i+=stride, ++o_it )
{
sum += static_cast<OutputPixelType>(*o_it)
* static_cast<OutputPixelType>(it.GetPixel(i));
}
return sum;
}
template<class TImage, class TOperator, class TComputation>
typename NeighborhoodInnerProduct<TImage, TOperator, TComputation>::OutputPixelType
NeighborhoodInnerProduct<TImage, TOperator, TComputation>
::operator()(const std::slice &s,
/* const ImageBoundaryCondition<TImage> *,*/
const NeighborhoodType &N,
const OperatorType &op) const
{
typename OperatorType::ConstIterator o_it;
OutputPixelType sum = NumericTraits<OutputPixelType>::Zero;
o_it = op.Begin();
const typename OperatorType::ConstIterator op_end = op.End();
const unsigned int start = static_cast<unsigned int>( s.start() );
const unsigned int stride = static_cast<unsigned int>( s.stride() );
for ( unsigned int i = start; o_it < op_end; i+=stride, ++o_it )
{
sum += static_cast<OutputPixelType>(*o_it)
* static_cast<OutputPixelType>(N[i]);
}
return sum;
}
}// end namespace itk
#endif
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