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/* SPDX-License-Identifier: BSD-2-Clause */
/*
* Copyright (C) 2019, Raspberry Pi Ltd
* Copyright (C) 2024, Paul Elder <paul.elder@ideasonboard.com>
*
* Helper class that implements lux estimation
*/
#pragma once
#include <libcamera/base/utils.h>
namespace libcamera {
class YamlObject;
namespace ipa {
class Histogram;
class Lux
{
public:
Lux(unsigned int binSize);
int parseTuningData(const YamlObject &tuningData);
double estimateLux(utils::Duration exposureTime,
double aGain, double dGain,
const Histogram &yHist) const;
private:
unsigned int binSize_;
utils::Duration referenceExposureTime_;
double referenceAnalogueGain_;
double referenceDigitalGain_;
double referenceY_;
double referenceLux_;
};
} /* namespace ipa */
} /* namespace libcamera */
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