/usr/include/InsightToolkit/Algorithms/itkPointSetToImageMetric.txx is in libinsighttoolkit3-dev 3.20.1-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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Program: Insight Segmentation & Registration Toolkit
Module: itkPointSetToImageMetric.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 __itkPointSetToImageMetric_txx
#define __itkPointSetToImageMetric_txx
#include "itkPointSetToImageMetric.h"
namespace itk
{
/**
* Constructor
*/
template <class TFixedPointSet, class TMovingImage>
PointSetToImageMetric<TFixedPointSet,TMovingImage>
::PointSetToImageMetric()
{
m_FixedPointSet = 0; // has to be provided by the user.
m_MovingImage = 0; // has to be provided by the user.
m_Transform = 0; // has to be provided by the user.
m_Interpolator = 0; // has to be provided by the user.
m_ComputeGradient = true; // metric computes gradient by default
m_NumberOfPixelsCounted = 0; // initialize to zero
m_GradientImage = NULL; // computed at initialization
}
/**
* Set the parameters that define a unique transform
*/
template <class TFixedPointSet, class TMovingImage>
void
PointSetToImageMetric<TFixedPointSet,TMovingImage>
::SetTransformParameters( const ParametersType & parameters ) const
{
if( !m_Transform )
{
itkExceptionMacro(<<"Transform has not been assigned");
}
m_Transform->SetParameters( parameters );
}
/**
* PrintSelf
*/
template <class TFixedPointSet, class TMovingImage>
void
PointSetToImageMetric<TFixedPointSet,TMovingImage>
::Initialize(void) throw ( ExceptionObject )
{
if( !m_Transform )
{
itkExceptionMacro(<<"Transform is not present");
}
if( !m_Interpolator )
{
itkExceptionMacro(<<"Interpolator is not present");
}
if( !m_MovingImage )
{
itkExceptionMacro(<<"MovingImage is not present");
}
if( !m_FixedPointSet )
{
itkExceptionMacro(<<"FixedPointSet is not present");
}
// If the image is provided by a source, update the source.
if( m_MovingImage->GetSource() )
{
m_MovingImage->GetSource()->Update();
}
// If the point set is provided by a source, update the source.
if( m_FixedPointSet->GetSource() )
{
m_FixedPointSet->GetSource()->Update();
}
m_Interpolator->SetInputImage( m_MovingImage );
if ( m_ComputeGradient )
{
GradientImageFilterPointer gradientFilter
= GradientImageFilterType::New();
gradientFilter->SetInput( m_MovingImage );
const typename MovingImageType::SpacingType&
spacing = m_MovingImage->GetSpacing();
double maximumSpacing=0.0;
for(unsigned int i=0; i<MovingImageDimension; i++)
{
if( spacing[i] > maximumSpacing )
{
maximumSpacing = spacing[i];
}
}
gradientFilter->SetSigma( maximumSpacing );
gradientFilter->SetNormalizeAcrossScale( true );
gradientFilter->Update();
m_GradientImage = gradientFilter->GetOutput();
}
}
/**
* PrintSelf
*/
template <class TFixedPointSet, class TMovingImage>
void
PointSetToImageMetric<TFixedPointSet,TMovingImage>
::PrintSelf(std::ostream& os, Indent indent) const
{
Superclass::PrintSelf( os, indent );
os << indent << "Moving Image: " << m_MovingImage.GetPointer() << std::endl;
os << indent << "Fixed Image: " << m_FixedPointSet.GetPointer() << std::endl;
os << indent << "Gradient Image: " << m_GradientImage.GetPointer() << std::endl;
os << indent << "Transform: " << m_Transform.GetPointer() << std::endl;
os << indent << "Interpolator: " << m_Interpolator.GetPointer() << std::endl;
os << indent << "Number of Pixels Counted: " << m_NumberOfPixelsCounted << std::endl;
os << indent << "Compute Gradient: " << m_ComputeGradient << std::endl;
}
} // end namespace itk
#endif
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