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/*=========================================================================
Program: Advanced Normalization Tools
Module: $RCSfile: itkExpTensorImageFilter.hxx,v $
Language: C++
Date: $Date: 2009/01/27 19:56:28 $
Version: $Revision: 1.1 $
Copyright (c) ConsortiumOfANTS. All rights reserved.
See accompanying COPYING.txt or
http://sourceforge.net/projects/advants/files/ANTS/ANTSCopyright.txt 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 _itkExpTensorImageFilter_hxx
#define _itkExpTensorImageFilter_hxx
#include "itkConstNeighborhoodIterator.h"
#include "itkNeighborhoodInnerProduct.h"
#include "itkImageRegionIterator.h"
#include "itkImageRegionConstIterator.h"
#include "itkOffset.h"
#include "itkProgressReporter.h"
#include "itkObjectFactory.h"
#include "vnl/vnl_matrix.h"
#include "vnl/algo/vnl_symmetric_eigensystem.h"
#include "itkExpTensorImageFilter.h"
#include "TensorFunctions.h"
namespace itk
{
template <class TInputImage, class TOutputImage>
ExpTensorImageFilter<TInputImage, TOutputImage>
::ExpTensorImageFilter()
{
}
template <class TInputImage, class TOutputImage>
void
ExpTensorImageFilter<TInputImage, TOutputImage>
::GenerateData()
{
InputImagePointer input = this->GetInput();
OutputImagePointer output = this->GetOutput();
ImageRegionConstIterator<InputImageType> inputIt( input, input->GetLargestPossibleRegion() );
output->SetRegions( input->GetLargestPossibleRegion() );
output->Allocate();
ImageRegionIterator<OutputImageType> outputIt( output, output->GetLargestPossibleRegion() );
for( inputIt.GoToBegin(), outputIt.GoToBegin();
!inputIt.IsAtEnd() && !outputIt.IsAtEnd(); ++inputIt, ++outputIt )
{
bool success; // TODO -- actually check the result?
InputPixelType result = TensorLogAndExp<InputPixelType>(inputIt.Value(), false, success);
outputIt.Set( result );
}
}
/**
* Standard "PrintSelf" method
*/
template <class TInputImage, class TOutput>
void
ExpTensorImageFilter<TInputImage, TOutput>
::PrintSelf(
std::ostream& os,
Indent indent) const
{
Superclass::PrintSelf( os, indent );
}
} // end namespace itk
#endif
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