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/*=========================================================================
*
* Copyright Insight Software Consortium
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0.txt
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*=========================================================================*/
#ifndef itkVectorThresholdSegmentationLevelSetFunction_hxx
#define itkVectorThresholdSegmentationLevelSetFunction_hxx
#include "itkVectorThresholdSegmentationLevelSetFunction.h"
#include "itkImageRegionIterator.h"
#include "itkGradientAnisotropicDiffusionImageFilter.h"
#include "itkLaplacianImageFilter.h"
#include "itkImageFileWriter.h"
namespace itk
{
template< typename TImageType, typename 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 - std::sqrt( m_Mahalanobis->Evaluate( fit.Get() ) );
sit.Set( static_cast< ScalarValueType >( threshold ) );
}
}
} // end namespace itk
#endif
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