awb_grey.h

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/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
 * Copyright (C) 2024 Ideas on Board Oy
 *
 * AWB grey world algorithm
 */
 
#pragma once
 
#include <optional>
 
#include "libcamera/internal/vector.h"
 
#include "awb.h"
#include "interpolator.h"
 
namespace libcamera {
 
namespace ipa {
 
class AwbGrey : public AwbAlgorithm
{
public:
    AwbGrey() = default;
 
    int init(const ValueNode &tuningData) override;
    AwbResult calculateAwb(const AwbStats &stats, unsigned int lux) override;
    std::optional<RGB<double>> gainsFromColourTemperature(double colourTemperature) override;
 
private:
    std::optional<Interpolator<Vector<double, 2>>> colourGainCurve_;
};
 
} /* namespace ipa */
 
} /* namespace libcamera */