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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: $RCSfile: itkSampleSelectiveMeanShiftBlurringFilter.txx,v $
Language: C++
Date: $Date: 2009-03-04 19:29:54 $
Version: $Revision: 1.6 $
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 __itkSampleSelectiveMeanShiftBlurringFilter_txx
#define __itkSampleSelectiveMeanShiftBlurringFilter_txx
namespace itk {
namespace Statistics {
template< class TSample >
SampleSelectiveMeanShiftBlurringFilter< TSample >
::SampleSelectiveMeanShiftBlurringFilter()
{
}
template< class TSample >
SampleSelectiveMeanShiftBlurringFilter< TSample >
::~SampleSelectiveMeanShiftBlurringFilter()
{
}
template< class TSample >
void
SampleSelectiveMeanShiftBlurringFilter< TSample >
::PrintSelf(std::ostream& os, Indent indent) const
{
Superclass::PrintSelf(os,indent);
os << indent << "Component selections: [";
for( unsigned int i=0; i< MeasurementVectorTraits::GetLength(
m_ComponentSelections ); i++ )
{
os << m_ComponentSelections[i] << " " << std::endl;
}
os << "]" << std::endl;
}
template< class TSample >
inline void
SampleSelectiveMeanShiftBlurringFilter< TSample >
::SetComponentSelections(ComponentSelectionsType selections)
{
if( this->GetMeasurementVectorSize() )
{
MeasurementVectorTraits::Assert( selections, this->GetMeasurementVectorSize(),
"Size of measurement vectors in the sample must be the same as the size of the component selections array.");
}
if ( m_ComponentSelections != selections )
{
m_ComponentSelections = selections;
this->Modified();
}
}
template< class TSample >
inline void
SampleSelectiveMeanShiftBlurringFilter< TSample >
::GenerateData()
{
// Assert at run time that the given mean has the same length as
// measurement vectors in the sample and that the size is non-zero.
if( MeasurementVectorTraits::GetLength(m_ComponentSelections ))
{
MeasurementVectorTraits::SetLength( m_ComponentSelections,
this->GetMeasurementVectorSize() );
for( unsigned int i=0; i< this->GetMeasurementVectorSize(); i++ )
{
m_ComponentSelections[i] = true;
}
}
else if( !(this->GetMeasurementVectorSize() ) ||
( m_ComponentSelections.size() != this->GetMeasurementVectorSize() ) )
{
itkExceptionMacro( << "Size of measurement vectors in the sample must be "
<< "the same as the size of the component selections array." );
}
MeasurementVectorType queryPoint;
MeasurementVectorType modePoint;
MeasurementVectorType finalPoint;
MeasurementVectorTraits::SetLength( finalPoint, this->GetMeasurementVectorSize() );
typename Superclass::InputSampleType::ConstIterator iter = this->GetInputSample()->Begin();
typename Superclass::InputSampleType::ConstIterator end = this->GetInputSample()->End();
OutputType* output = this->GetOutput();
output->Clear();
MeanShiftModeSeekerType* modeSeeker = this->GetMeanShiftModeSeeker();
while ( iter != end )
{
queryPoint = iter.GetMeasurementVector();
modePoint = modeSeeker->Evolve( queryPoint );
for ( unsigned int i = 0; i < this->GetMeasurementVectorSize(); ++i )
{
if ( m_ComponentSelections[i] )
{
finalPoint[i] = modePoint[i];
}
else
{
finalPoint[i] = queryPoint[i];
}
}
output->PushBack( finalPoint );
++iter;
}
}
} // end of namespace Statistics
} // end of namespace itk
#endif
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