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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.
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 otbSamplingRateCalculatorList_h
#define otbSamplingRateCalculatorList_h
#include "otbSamplingRateCalculator.h"
#include "otbObjectList.h"
namespace otb
{
/** \class SamplingRateCalculatorList
* \brief This class is a list of sampling rate calculators.
*
* It computes sampling rates for each image and each class, given input
* statistics on available samples, and a sampling strategy. The sampling
* strategies are made from the combination of :
* - the sampling strategies of otb::SamplingRateCalculator (mono-image)
* - a multi-image behaviour : proportional / constant / custom
*
* \ingroup OTBSampling
*/
class ITK_EXPORT SamplingRateCalculatorList
: public ObjectList<SamplingRateCalculator>
{
public:
/** Standard typedefs */
typedef SamplingRateCalculatorList Self;
typedef ObjectList<SamplingRateCalculator> Superclass;
typedef itk::SmartPointer<Self> Pointer;
typedef itk::SmartPointer<const Self> ConstPointer;
typedef SamplingRateCalculator::ClassCountMapType ClassCountMapType;
typedef SamplingRateCalculator::MapRateType MapRateType;
enum PartitionType
{
PROPORTIONAL,
EQUAL,
CUSTOM
};
/** Type macro */
itkNewMacro(Self);
/** Creation through object factory macro */
itkTypeMacro(SamplingRateCalculatorList, ObjectList);
/** Set the class counts for input 'index' */
void SetNthClassCount(unsigned int index,const ClassCountMapType &map);
/** Get the sampling rates computed for input 'index' */
const MapRateType & GetRatesByClass(unsigned int index);
/** Clear internal data */
void ClearRates(void);
/** Method to select all available samples */
void SetAllSamples(PartitionType t);
/** Method to choose a sampling strategy based on the smallest class.
* The number of samples in each class is set to this minimum size*/
void SetMinimumNbOfSamplesByClass(PartitionType t);
/** Method to set the same number of required samples in each class */
void SetNbOfSamplesAllClasses(std::vector<unsigned long> &nb, PartitionType t);
/** Method to manually set the number of samples required in each class */
void SetNbOfSamplesByClass(const std::vector<ClassCountMapType> &required, PartitionType t);
/** Method to use a percentage of the samples available in each
* class */
void SetPercentageOfSamples(std::vector<double> &p, PartitionType t);
/** Method to set the total number of samples and use classes proportions
*/
void SetTotalNumberOfSamples(std::vector<unsigned long> &tot, PartitionType t);
protected:
/** Constructor */
SamplingRateCalculatorList(){}
/** Destructor */
~SamplingRateCalculatorList() ITK_OVERRIDE {}
private:
SamplingRateCalculatorList(const Self &); //purposely not implemented
void operator =(const Self&); //purposely not implemented
void UpdateGlobalCounts();
ClassCountMapType m_GlobalCountMap;
};
} // end namespace otb
#endif
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