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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 itkScalarChanAndVeseDenseLevelSetImageFilter_hxx
#define itkScalarChanAndVeseDenseLevelSetImageFilter_hxx
#include "itkScalarChanAndVeseDenseLevelSetImageFilter.h"
namespace itk
{
template< typename TInputImage, typename TFeatureImage, typename TOutputImage, typename TFunction,
typename TSharedData >
void
ScalarChanAndVeseDenseLevelSetImageFilter< TInputImage, TFeatureImage, TOutputImage,
TFunction, TSharedData >::Initialize()
{
// Set the feature image for the individual level-set functions
for ( unsigned int fId = 0; fId < this->m_FunctionCount; ++fId )
{
InputImagePointer input = this->m_LevelSet[fId];
InputPointType origin = input->GetOrigin();
// In the context of the global coordinates
FeatureIndexType start;
this->GetInput()->TransformPhysicalPointToIndex(origin, start);
// Defining roi region
FeatureRegionType region;
region.SetSize( input->GetLargestPossibleRegion().GetSize() );
region.SetIndex(start);
// Initialize the ROI filter with the feature image
ROIFilterPointer roi = ROIFilterType::New();
roi->SetInput( this->GetInput() );
roi->SetRegionOfInterest(region);
roi->Update();
// Assign roi output
FeatureImagePointer feature = roi->GetOutput();
this->m_DifferenceFunctions[fId]->SetFeatureImage(feature);
this->m_DifferenceFunctions[fId]->CalculateAdvectionImage();
}
// Initialize the function count in shared data
this->m_SharedData->SetFunctionCount (this->m_FunctionCount);
// Set the KdTree pointer
if ( this->m_KdTree )
{
this->m_SharedData->SetKdTree(this->m_KdTree);
}
for ( unsigned int fId = 0; fId < this->m_FunctionCount; ++fId )
{
this->m_DifferenceFunctions[fId]->SetFunctionId(fId);
this->m_SharedData->CreateHeavisideFunctionOfLevelSetImage (fId, this->m_LevelSet[fId]);
// Share the this->m_SharedData structure
this->m_DifferenceFunctions[fId]->SetSharedData(this->m_SharedData);
}
this->m_SharedData->AllocateListImage( this->GetInput() );
this->m_SharedData->PopulateListImage();
this->Superclass::Initialize();
}
/** Overrides parent implementation */
// This function is called at the end of each iteration
template< typename TInputImage, typename TFeatureImage, typename TOutputImage, typename TFunction,
typename TSharedData >
void
ScalarChanAndVeseDenseLevelSetImageFilter< TInputImage, TFeatureImage, TOutputImage,
TFunction, TSharedData >
::InitializeIteration()
{
this->Superclass::InitializeIteration();
for ( unsigned int fId = 0; fId < this->m_FunctionCount; ++fId )
{
this->m_DifferenceFunctions[fId]->SetInitialImage(this->m_LevelSet[fId]);
this->m_DifferenceFunctions[fId]->UpdateSharedData (true);
}
for ( unsigned int fId = 0; fId < this->m_FunctionCount; ++fId )
{
this->m_DifferenceFunctions[fId]->UpdateSharedData (false);
}
}
} /* end namespace itk */
#endif
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