/usr/include/OTB-5.8/otbFlexibleDistanceWithMissingValue.h is in libotb-dev 5.8.0+dfsg-3.
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Program: ORFEO Toolbox
Language: C++
Date: $Date$
Version: $Revision$
Copyright (c) Centre National d'Etudes Spatiales. All rights reserved.
See OTBCopyright.txt for details.
Copyright (c) Institut Mines-Telecom. All rights reserved.
See IMTCopyright.txt 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 otbFlexibleDistanceWithMissingValue_h
#define otbFlexibleDistanceWithMissingValue_h
#include "otbEuclideanDistanceMetricWithMissingValuePow2.h"
namespace otb {
namespace Statistics {
/** \class FlexibleDistanceWithMissingValue
* \brief Non-Euclidean distance function facing missing value.
*
* This class is derived from EuclideanDistanceMetricWithMissingValuePow2 class to
* deal with missing data. In addition, the initial Evaluate method performs
* a flexible calculation of distance when a component does contain data.
*
* The general formulation is defined as:
* \f$
d(x, y) = \sum_i | x_i^a - y_i^a |^b.
\f$
*
* The class can be templated over any container that holds data elements, as
* for template of EuclideanDistanceMetric.
*
* The only restriction is that elements have to support \code NaN \endcode.
*
* \sa EuclideanDistanceMetricWithMissingValuePow2
*
* \ingroup OTBImageManipulation
*/
template<class TVector>
class ITK_EXPORT FlexibleDistanceWithMissingValue :
public otb::Statistics::EuclideanDistanceMetricWithMissingValuePow2<TVector>
{
public:
/** Standard "Self" typedef. */
typedef FlexibleDistanceWithMissingValue Self;
typedef otb::Statistics::EuclideanDistanceMetricWithMissingValuePow2<TVector> Superclass;
typedef itk::SmartPointer<Self> Pointer;
typedef itk::SmartPointer<const Self> ConstPointer;
typedef typename Superclass::MeasurementVectorSizeType MeasurementVectorSizeType;
/** Run-time type information (and related methods). */
itkTypeMacro(FlexibleDistanceWithMissingValue, EuclideanDistanceMetricWithMissingValuePow2);
/** Method for creation through the object factory. */
itkNewMacro(Self);
/** Type of the component of a vector */
typedef typename TVector::ValueType ValueType;
/** Gets the distance between the origin and x */
double Evaluate(const TVector& x) const ITK_OVERRIDE;
/** Gets the distance between x1 and x2 */
double Evaluate(const TVector& x1, const TVector& x2) const ITK_OVERRIDE;
/** Gets the cooridnate distance between a and b. NOTE: a and b
* should be type of component */
double Evaluate(const ValueType& a, const ValueType& b) const;
/** Returns true if the distance between x and the origin is less
* than radius */
bool IsWithinRange(const TVector& x, const double radius) const
{
return Superclass::IsWithinRange(x, radius);
}
/** Set the value of the parameter a and b.
* Those parameters are defined as static component in order to call it far
* away from the instantiation of the class (through the SOM training for instance) */
static double Alpha;
static double Beta;
static void SetAlphaBeta(double a, double b);
/** test if it is ordinary Euclidean distance */
static bool IsEuclidean();
protected:
FlexibleDistanceWithMissingValue() {}
~FlexibleDistanceWithMissingValue() ITK_OVERRIDE {}
}; // end of class
/** Static variable instantiation */
template<class TVector>
double FlexibleDistanceWithMissingValue<TVector>::Alpha = 1.0;
template<class TVector>
double FlexibleDistanceWithMissingValue<TVector>::Beta = 2.0;
} // end namespace statistics
} // end namespace otb
#ifndef OTB_MANUAL_INSTANTIATION
#include "otbFlexibleDistanceWithMissingValue.txx"
#endif
#endif
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