/usr/include/ITK-4.9/itkShiSparseLevelSetImage.hxx is in libinsighttoolkit4-dev 4.9.0-4ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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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 itkShiSparseLevelSetImage_hxx
#define itkShiSparseLevelSetImage_hxx
#include "itkShiSparseLevelSetImage.h"
namespace itk
{
template< unsigned int VDimension >
ShiSparseLevelSetImage< VDimension >
::ShiSparseLevelSetImage()
{
this->InitializeLayers();
this->InitializeInternalLabelList();
}
template< unsigned int VDimension >
ShiSparseLevelSetImage< VDimension >
::~ShiSparseLevelSetImage()
{
}
template< unsigned int VDimension >
typename ShiSparseLevelSetImage< VDimension >::OutputType
ShiSparseLevelSetImage< VDimension >
::Evaluate( const InputType& inputIndex ) const
{
InputType mapIndex = inputIndex - this->m_DomainOffset;
LayerMapConstIterator layerIt = this->m_Layers.begin();
while( layerIt != this->m_Layers.end() )
{
LayerConstIterator it = ( layerIt->second ).find( mapIndex );
if( it != ( layerIt->second ).end() )
{
return it->second;
}
++layerIt;
}
if( this->m_LabelMap->GetLabelObject( this->MinusThreeLayer() )->HasIndex( mapIndex ) )
{
return static_cast<OutputType>( this->MinusThreeLayer() );
}
else
{
const LayerIdType status = this->m_LabelMap->GetPixel( mapIndex );
if( status == this->PlusThreeLayer() )
{
return static_cast<OutputType>( this->PlusThreeLayer() );
}
else
{
itkGenericExceptionMacro( <<"status "
<< static_cast< int >( status )
<< " should be 3 or -3" );
}
}
}
template< unsigned int VDimension >
typename ShiSparseLevelSetImage< VDimension >::HessianType
ShiSparseLevelSetImage< VDimension >
::EvaluateHessian( const InputType& itkNotUsed( inputIndex ) ) const
{
itkGenericExceptionMacro( <<"The approximation of the hessian in the Shi's"
<<" representation is poor, and far to be representative."
<<" If it was required for regularization purpose, "
<<" you better check recommended regularization methods"
<<" for Shi's representation" );
HessianType hessian;
hessian.Fill( NumericTraits< OutputRealType >::ZeroValue() );
return hessian;
}
template< unsigned int VDimension >
typename ShiSparseLevelSetImage< VDimension >::OutputRealType
ShiSparseLevelSetImage< VDimension >
::EvaluateLaplacian( const InputType& itkNotUsed( inputIndex ) ) const
{
itkGenericExceptionMacro( <<"The approximation of the hessian in the Shi's"
<<" representation is poor, and far to be representative."
<<" If it was required for regularization purpose, "
<<" you better check recommended regularization methods"
<<" for Shi's representation" );
OutputRealType laplacian = NumericTraits< OutputRealType >::ZeroValue();
return laplacian;
}
template< unsigned int VDimension >
typename ShiSparseLevelSetImage< VDimension >::OutputRealType
ShiSparseLevelSetImage< VDimension >
::EvaluateMeanCurvature( const InputType& itkNotUsed( inputIndex ) ) const
{
itkGenericExceptionMacro( <<"The approximation of the hessian in the Shi's"
<<" representation is poor, and far to be representative."
<<" If it was required for regularization purpose, "
<<" you better check recommended regularization methods"
<<" for Shi's representation" );
OutputRealType meanCurvature = NumericTraits< OutputRealType >::ZeroValue();
return meanCurvature;
}
template< unsigned int VDimension >
void
ShiSparseLevelSetImage< VDimension >
::EvaluateHessian( const InputType& inputIndex, LevelSetDataType& data ) const
{
if( data.Hessian.m_Computed )
{
return;
}
data.Hessian.m_Value = this->EvaluateHessian( inputIndex );
data.Hessian.m_Computed = true;
}
template< unsigned int VDimension >
void
ShiSparseLevelSetImage< VDimension >
::EvaluateLaplacian( const InputType& inputIndex, LevelSetDataType& data ) const
{
if( data.Laplacian.m_Computed )
{
return;
}
data.Laplacian.m_Value = this->EvaluateLaplacian( inputIndex );
data.Laplacian.m_Computed = true;
}
template< unsigned int VDimension >
void
ShiSparseLevelSetImage< VDimension >
::EvaluateMeanCurvature( const InputType& inputIndex, LevelSetDataType& data ) const
{
if( data.MeanCurvature.m_Computed )
{
return;
}
data.MeanCurvature.m_Value = this->EvaluateMeanCurvature( inputIndex );
data.MeanCurvature.m_Computed = true;
}
template< unsigned int VDimension >
void
ShiSparseLevelSetImage< VDimension >::InitializeLayers()
{
this->m_Layers.clear();
this->m_Layers[ MinusOneLayer() ] = LayerType();
this->m_Layers[ PlusOneLayer() ] = LayerType();
}
template< unsigned int VDimension >
void
ShiSparseLevelSetImage< VDimension >::InitializeInternalLabelList()
{
this->m_InternalLabelList.clear();
this->m_InternalLabelList.push_back( MinusThreeLayer() );
this->m_InternalLabelList.push_back( MinusOneLayer() );
}
} // end namespace itk
#endif // itkShiSparseLevelSetImage_h
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