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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: $RCSfile: itkVectorNeighborhoodInnerProduct.txx,v $
Language: C++
Date: $Date: 2003-09-10 14:29:29 $
Version: $Revision: 1.9 $
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 _itkVectorNeighborhoodInnerProduct_txx
#define _itkVectorNeighborhoodInnerProduct_txx
#include "itkVectorNeighborhoodInnerProduct.h"
namespace itk {
template<class TImage>
typename VectorNeighborhoodInnerProduct<TImage>::PixelType
VectorNeighborhoodInnerProduct<TImage>
::operator()(const std::slice &s,
const ConstNeighborhoodIterator<TImage> &it,
const OperatorType &op) const
{
PixelType sum;
unsigned int j;
typename OperatorType::ConstIterator o_it;
for (j = 0; j < VectorDimension; ++j)
{ sum[j] = NumericTraits<ScalarValueType>::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 )
{
for (j = 0; j< VectorDimension; ++j)
{ sum[j] += *o_it * (it.GetPixel(i))[j]; }
}
return sum;
}
template<class TImage>
typename VectorNeighborhoodInnerProduct<TImage>::PixelType
VectorNeighborhoodInnerProduct<TImage>
::operator()(const std::slice &s,
const NeighborhoodType &it,
const OperatorType &op) const
{
PixelType sum;
unsigned int j;
typename OperatorType::ConstIterator o_it;
for (j = 0; j < VectorDimension; ++j)
{ sum[j] = NumericTraits<ScalarValueType>::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 )
{
for (j = 0; j< VectorDimension; ++j)
{ sum[j] += *o_it * it[i][j]; }
}
return sum;
}
}// end namespace itk
#endif
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