/usr/include/ITK-4.5/itkWindowConvergenceMonitoringFunction.hxx is in libinsighttoolkit4-dev 4.5.0-3.
This file is owned by root:root, with mode 0o644.
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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 __itkWindowConvergenceMonitoringFunction_hxx
#define __itkWindowConvergenceMonitoringFunction_hxx
#include "itkWindowConvergenceMonitoringFunction.h"
#include "itkBSplineControlPointImageFunction.h"
#include "itkBSplineScatteredDataPointSetToImageFilter.h"
#include "itkImage.h"
#include "itkPointSet.h"
#include "itkVector.h"
namespace itk
{
namespace Function
{
template<typename TScalar>
WindowConvergenceMonitoringFunction<TScalar>
::WindowConvergenceMonitoringFunction() :
m_WindowSize( 10 ),
m_TotalEnergy( 0 )
{}
template<typename TScalar>
WindowConvergenceMonitoringFunction<TScalar>
::~WindowConvergenceMonitoringFunction()
{}
template<typename TScalar>
void
WindowConvergenceMonitoringFunction<TScalar>
::AddEnergyValue( const EnergyValueType value )
{
itkDebugMacro( "Adding energy value " << value );
this->m_EnergyValues.push_back( value );
if( this->GetNumberOfEnergyValues() > this->m_WindowSize )
{
this->m_EnergyValues.pop_front();
}
this->m_TotalEnergy += vnl_math_abs( value );
this->Modified();
}
template<typename TScalar>
void
WindowConvergenceMonitoringFunction<TScalar>
::ClearEnergyValues()
{
Superclass::ClearEnergyValues();
this->m_TotalEnergy = NumericTraits<RealType>::Zero;
}
template<typename TScalar>
typename WindowConvergenceMonitoringFunction<TScalar>::RealType
WindowConvergenceMonitoringFunction<TScalar>
::GetConvergenceValue() const
{
if( this->GetNumberOfEnergyValues() < this->m_WindowSize )
{
return NumericTraits<RealType>::max();
}
typedef Vector<RealType, 1> ProfilePointDataType;
typedef Image<ProfilePointDataType, 1> CurveType;
typedef PointSet<ProfilePointDataType, 1> EnergyProfileType;
typedef typename EnergyProfileType::PointType ProfilePointType;
typename CurveType::PointType origin;
typename CurveType::SizeType size;
typename CurveType::SpacingType spacing;
origin[0] = 0;
size[0] = this->m_WindowSize;
spacing[0] = 1.0;
typedef BSplineScatteredDataPointSetToImageFilter<EnergyProfileType, CurveType> BSplinerType;
typename BSplinerType::Pointer bspliner = BSplinerType::New();
typename EnergyProfileType::Pointer energyProfileWindow = EnergyProfileType::New();
energyProfileWindow->Initialize();
for( unsigned int n = 0; n < this->m_WindowSize; n++ )
{
ProfilePointType windowPoint;
windowPoint[0] = static_cast<typename ProfilePointType::CoordRepType>( n );
energyProfileWindow->SetPoint( n, windowPoint );
energyProfileWindow->SetPointData( n, this->m_EnergyValues[n] / this->m_TotalEnergy );
}
bspliner->SetInput( energyProfileWindow );
bspliner->SetOrigin( origin );
bspliner->SetSpacing( spacing );
bspliner->SetSize( size );
bspliner->SetNumberOfLevels( 1 );
bspliner->SetSplineOrder( 1 );
typename BSplinerType::ArrayType ncps;
ncps.Fill( bspliner->GetSplineOrder()[0] + 1 );
bspliner->SetNumberOfControlPoints( ncps );
bspliner->Update();
typedef BSplineControlPointImageFunction<CurveType> BSplinerFunctionType;
typename BSplinerFunctionType::Pointer bsplinerFunction = BSplinerFunctionType::New();
bsplinerFunction->SetOrigin( origin );
bsplinerFunction->SetSpacing( spacing );
bsplinerFunction->SetSize( size );
bsplinerFunction->SetSplineOrder( bspliner->GetSplineOrder() );
bsplinerFunction->SetInputImage( bspliner->GetPhiLattice() );
ProfilePointType endPoint;
endPoint[0] = static_cast<RealType>( this->m_WindowSize - 1 );
typename BSplinerFunctionType::GradientType gradient =
bsplinerFunction->EvaluateGradientAtParametricPoint( endPoint );
RealType convergenceValue = -gradient[0][0];
return convergenceValue;
}
/**
* Standard "PrintSelf" method
*/
template<typename TScalar>
void
WindowConvergenceMonitoringFunction<TScalar>
::PrintSelf( std::ostream& os, Indent indent) const
{
Superclass::PrintSelf( os, indent );
os << "Window size: " << this->m_WindowSize << std::endl;
}
} // end namespace function
} // end namespace itk
#endif
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