/usr/include/InsightToolkit/Review/Statistics/itkMembershipFunctionBase.h is in libinsighttoolkit3-dev 3.20.1-1.
This file is owned by root:root, with mode 0o644.
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Program: Insight Segmentation & Registration Toolkit
Module: itkMembershipFunctionBase.h
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 __itkMembershipFunctionBase_h
#define __itkMembershipFunctionBase_h
#include "itkFunctionBase.h"
#include "itkMeasurementVectorTraits.h"
namespace itk {
namespace Statistics {
/** \class MembershipFunctionBase
* \brief MembershipFunctionBase class declares common interfaces
* for membership functions.
*
* As a function derived from FunctionBase, users use Evaluate method
* get result. However, the return value type of the method is fixed
* as double. Any function derived from this class returns quantitative
* measure for how well the vector x belong to the class ( or group)
* represented by the function.
*/
template< class TVector >
class ITK_EXPORT MembershipFunctionBase :
public FunctionBase< TVector, double >
{
public:
/** Standard class typedefs */
typedef MembershipFunctionBase Self;
typedef FunctionBase< TVector, double > Superclass;
typedef SmartPointer< Self > Pointer;
typedef SmartPointer<const Self> ConstPointer;
/** Strandard macros */
itkTypeMacro(MembershipFunctionBase, FunctionBase);
/** MeasurementVector typedef support */
typedef TVector MeasurementVectorType;
/** Typedef for the length of each measurement vector */
typedef unsigned int MeasurementVectorSizeType;
/** Method to get membership score (discriminant score) of an entity. */
virtual double Evaluate(const MeasurementVectorType &x) const = 0;
/** Set method for the length of the measurement vector */
virtual void SetMeasurementVectorSize( MeasurementVectorSizeType s )
{
// Test whether the vector type is resizable or not
MeasurementVectorType m;
if( MeasurementVectorTraits::IsResizable( m ) )
{
// then this is a resizable vector type
//
// if the new size is the same as the previou size, just return
if( s == this->m_MeasurementVectorSize )
{
return;
}
else
{
this->m_MeasurementVectorSize = s;
this->Modified();
}
}
else
{
// If this is a non-resizable vector type
MeasurementVectorType m3;
MeasurementVectorSizeType defaultLength = MeasurementVectorTraits::GetLength( m3 );
// and the new length is different from the default one, then throw an exception
if( defaultLength != s )
{
itkExceptionMacro("Attempting to change the measurement \
vector size of a non-resizable vector type");
}
}
}
/** Get method for the length of the measurement vector */
itkGetConstMacro( MeasurementVectorSize, MeasurementVectorSizeType );
protected:
MembershipFunctionBase()
{
m_MeasurementVectorSize = MeasurementVectorTraits::GetLength(
MeasurementVectorType() );
}
virtual ~MembershipFunctionBase(void) {}
void PrintSelf(std::ostream& os, Indent indent) const
{
Superclass::PrintSelf(os,indent);
os << indent << "Length of measurement vectors: "
<< m_MeasurementVectorSize << std::endl;
}
MeasurementVectorSizeType m_MeasurementVectorSize;
}; // end of class
} // end of namespace Statistics
} // end namespace itk
#endif
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