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/*
* Copyright (C) 2005-2022 Centre National d'Etudes Spatiales (CNES)
*
* This file is part of Orfeo Toolbox
*
* https://www.orfeo-toolbox.org/
*
* 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
*
* 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 otbSamplingRateCalculatorList_h
#define otbSamplingRateCalculatorList_h
#include "otbSamplingRateCalculator.h"
#include "otbObjectList.h"
#include "OTBSamplingExport.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 OTBSampling_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() override
{
}
private:
SamplingRateCalculatorList(const Self&) = delete;
void operator=(const Self&) = delete;
void UpdateGlobalCounts();
ClassCountMapType m_GlobalCountMap;
};
} // end namespace otb
#endif
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