Stefan Klug
c699d26573
In the grey world AWB case, if no colour gains are contained in the tuning file, the colour gains get reset to 1 when the colour temperature is set manually. This is unexpected and undesirable. Allow the gainsFromColourTemp() function to return a std::nullopt to handle that case. While at it, remove an unnecessary import from rkisp1/algorithms/awb.h. Signed-off-by: Stefan Klug <stefan.klug@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
68 lines
1.3 KiB
C++
68 lines
1.3 KiB
C++
/* SPDX-License-Identifier: LGPL-2.1-or-later */
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/*
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* Copyright (C) 2024 Ideas on Board Oy
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*
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* Generic AWB algorithms
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*/
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#pragma once
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#include <map>
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#include <optional>
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#include <libcamera/control_ids.h>
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#include <libcamera/controls.h>
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#include "libcamera/internal/vector.h"
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#include "libcamera/internal/yaml_parser.h"
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namespace libcamera {
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namespace ipa {
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struct AwbResult {
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RGB<double> gains;
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double colourTemperature;
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};
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struct AwbStats {
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virtual double computeColourError(const RGB<double> &gains) const = 0;
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virtual RGB<double> rgbMeans() const = 0;
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protected:
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~AwbStats() = default;
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};
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class AwbAlgorithm
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{
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public:
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virtual ~AwbAlgorithm() = default;
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virtual int init(const YamlObject &tuningData) = 0;
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virtual AwbResult calculateAwb(const AwbStats &stats, unsigned int lux) = 0;
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virtual std::optional<RGB<double>> gainsFromColourTemperature(double colourTemperature) = 0;
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const ControlInfoMap::Map &controls() const
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{
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return controls_;
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}
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virtual void handleControls([[maybe_unused]] const ControlList &controls) {}
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protected:
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int parseModeConfigs(const YamlObject &tuningData,
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const ControlValue &def = {});
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struct ModeConfig {
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double ctHi;
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double ctLo;
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};
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ControlInfoMap::Map controls_;
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std::map<controls::AwbModeEnum, AwbAlgorithm::ModeConfig> modes_;
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};
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} /* namespace ipa */
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} /* namespace libcamera */
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