/usr/include/OTB-5.8/otbMRFSamplerMAP.h is in libotb-dev 5.8.0+dfsg-3.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 | /*=========================================================================
Program: ORFEO Toolbox
Language: C++
Date: $Date$
Version: $Revision$
Copyright (c) Centre National d'Etudes Spatiales. All rights reserved.
See OTBCopyright.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 otbMRFSamplerMAP_h
#define otbMRFSamplerMAP_h
#include "otbMRFSampler.h"
namespace otb
{
/**
* \class MRFSamplerMAP
* \brief This is the base class for sampler methods used in the MRF framework.
*
* This is one sampler to be used int he MRF framework. This sampler select the
* value which maximizes the apriori probability (minimum energy).
*
*
* This class is meant to be used in the MRF framework with the otb::MarkovRandomFieldFilter
*
* \ingroup Markov
*
* \ingroup OTBMarkov
*/
template<class TInput1, class TInput2>
class ITK_EXPORT MRFSamplerMAP : public MRFSampler<TInput1, TInput2>
{
public:
typedef MRFSamplerMAP Self;
typedef MRFSampler<TInput1, TInput2> Superclass;
typedef itk::SmartPointer<Self> Pointer;
typedef itk::SmartPointer<const Self> ConstPointer;
typedef typename Superclass::InputImageNeighborhoodIterator InputImageNeighborhoodIterator;
typedef typename Superclass::LabelledImageNeighborhoodIterator LabelledImageNeighborhoodIterator;
typedef typename Superclass::LabelledImagePixelType LabelledImagePixelType;
typedef typename Superclass::InputImagePixelType InputImagePixelType;
typedef typename Superclass::EnergyFidelityType EnergyFidelityType;
typedef typename Superclass::EnergyRegularizationType EnergyRegularizationType;
typedef typename Superclass::EnergyFidelityPointer EnergyFidelityPointer;
typedef typename Superclass::EnergyRegularizationPointer EnergyRegularizationPointer;
itkNewMacro(Self);
itkTypeMacro(MRFSamplerMAP, MRFSampler);
inline int Compute(const InputImageNeighborhoodIterator& itData,
const LabelledImageNeighborhoodIterator& itRegul) ITK_OVERRIDE
{
if (this->m_NumberOfClasses == 0)
{
itkExceptionMacro(<< "NumberOfClasse has to be greater than 0.");
}
this->m_EnergyBefore = this->m_EnergyFidelity->GetValue(itData, itRegul.GetCenterPixel());
this->m_EnergyBefore += this->m_Lambda
* this->m_EnergyRegularization->GetValue(itRegul, itRegul.GetCenterPixel());
//Try all possible value (how to be generic ?)
this->m_EnergyAfter = this->m_EnergyBefore; //default values to current one
this->m_Value = itRegul.GetCenterPixel();
LabelledImagePixelType valueCurrent = 0;
while (valueCurrent < static_cast<LabelledImagePixelType>(this->GetNumberOfClasses()) && valueCurrent !=
itk::NumericTraits<LabelledImagePixelType>::max())
{
this->m_EnergyCurrent = this->m_EnergyFidelity->GetValue(itData, valueCurrent);
this->m_EnergyCurrent += this->m_Lambda
* this->m_EnergyRegularization->GetValue(itRegul, valueCurrent);
if (this->m_EnergyCurrent < this->m_EnergyAfter)
{
this->m_EnergyAfter = this->m_EnergyCurrent;
this->m_Value = valueCurrent;
}
valueCurrent++;
}
this->m_DeltaEnergy = this->m_EnergyAfter - this->m_EnergyBefore;
return 0;
}
protected:
// The constructor and destructor.
MRFSamplerMAP() {};
~MRFSamplerMAP() ITK_OVERRIDE {}
};
}
#endif
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