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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: itkVectorThresholdSegmentationLevelSetFunction.txx
Language: C++
Date: $Date$
Version: $Revision$
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 __itkVectorThresholdSegmentationLevelSetFunction_txx
#define __itkVectorThresholdSegmentationLevelSetFunction_txx
#include "itkVectorThresholdSegmentationLevelSetFunction.h"
#include "itkImageRegionIterator.h"
#include "itkGradientAnisotropicDiffusionImageFilter.h"
#include "itkLaplacianImageFilter.h"
#include "itkImageFileWriter.h"
namespace itk {
template <class TImageType, class TFeatureImageType>
void VectorThresholdSegmentationLevelSetFunction<TImageType, TFeatureImageType>
::CalculateSpeedImage()
{
ImageRegionConstIterator<FeatureImageType>
fit(this->GetFeatureImage(), this->GetFeatureImage()->GetRequestedRegion());
ImageRegionIterator<ImageType>
sit(this->GetSpeedImage(), this->GetFeatureImage()->GetRequestedRegion());
ScalarValueType threshold;
for ( fit.GoToBegin(), sit.GoToBegin(); ! fit.IsAtEnd(); ++sit, ++fit)
{
threshold = m_Threshold - vcl_sqrt(m_Mahalanobis->Evaluate(fit.Get()));
sit.Set( static_cast<ScalarValueType>(threshold) );
}
}
} // end namespace itk
#endif
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