/usr/include/ITK-4.5/itkSquaredDifferenceErrorFunction.hxx is in libinsighttoolkit4-dev 4.5.0-3.
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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 __itkSquaredDifferenceErrorFunction_hxx
#define __itkSquaredDifferenceErrorFunction_hxx
#include "itkSquaredDifferenceErrorFunction.h"
namespace itk
{
namespace Statistics
{
/** Constructor */
template<typename TMeasurementVector, typename ScalarType>
SquaredDifferenceErrorFunction<TMeasurementVector,ScalarType>
::SquaredDifferenceErrorFunction()
{
}
/** Destructor */
template<typename TMeasurementVector, typename ScalarType>
SquaredDifferenceErrorFunction <TMeasurementVector,ScalarType>
::~SquaredDifferenceErrorFunction()
{
}
/** Evaluate */
template<typename TMeasurementVector, typename ScalarType>
ScalarType
SquaredDifferenceErrorFunction <TMeasurementVector,ScalarType>
::Evaluate(const TMeasurementVector& errors) const
{
vnl_vector <ScalarType> temp;
temp.set_size(errors.Size());
for(unsigned int i=0; i<errors.Size(); i++)
temp[i]=errors[i];
//temp.(errors.GetVnlVector());
return (temp.squared_magnitude() / 2);
}
/** Evaluate derivatives */
template<typename TMeasurementVector, typename ScalarType>
typename SquaredDifferenceErrorFunction <TMeasurementVector,ScalarType>
::InternalVectorType
SquaredDifferenceErrorFunction <TMeasurementVector,ScalarType>
::EvaluateDerivative(const TMeasurementVector& errors) const
{
//TMeasurementVector diff;
InternalVectorType diff;
diff.SetSize(errors.Size());
for(unsigned int i=0; i<errors.Size(); i++)
{
if ((-0.1 < errors[i]) && (errors[i] < 0.1))
{
diff[i]=0;
}
else
{
diff[i]=errors[i];
}
}
return (diff); //(errors);
}
/** Print the object */
template<typename TMeasurementVector, typename ScalarType>
void
SquaredDifferenceErrorFunction <TMeasurementVector,ScalarType>
::PrintSelf( std::ostream& os, Indent indent ) const
{
os << indent << "SquaredDifferenceErrorFunction(" << this << ")" << std::endl;
Superclass::PrintSelf( os, indent );
}
} // end namespace Statistics
} // end namespace itk
#endif
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