diff options
| author | David Plowman <david.plowman@raspberrypi.com> | 2023-10-10 11:13:51 +0100 |
|---|---|---|
| committer | Kieran Bingham <kieran.bingham@ideasonboard.com> | 2023-10-24 14:11:16 +0100 |
| commit | 5f2ef63e7a4ad1d6326619f44e469558cfed6390 (patch) | |
| tree | 347051744d655dd6e7e9134d61efe5a0d7b2c49f /src/ipa/rpi/controller/rpi/hdr.h | |
| parent | fd98779d7838cca1b52ba3cb34c22e964e69eb7e (diff) | |
ipa: rpi: hdr: Add the ability to alter the LSC table
We can perform some of the local contrast adjustment using global
gains in the LSC table. We can vary the amount of gain according to
the measured brightness of that image region.
Signed-off-by: David Plowman <david.plowman@raspberrypi.com>
Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: Naushir Patuck <naush@raspberrypi.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Diffstat (limited to 'src/ipa/rpi/controller/rpi/hdr.h')
| -rw-r--r-- | src/ipa/rpi/controller/rpi/hdr.h | 18 |
1 files changed, 11 insertions, 7 deletions
diff --git a/src/ipa/rpi/controller/rpi/hdr.h b/src/ipa/rpi/controller/rpi/hdr.h index 01ba45f1..980aa3d1 100644 --- a/src/ipa/rpi/controller/rpi/hdr.h +++ b/src/ipa/rpi/controller/rpi/hdr.h @@ -10,6 +10,8 @@ #include <string> #include <vector> +#include <libcamera/geometry.h> + #include "../hdr_algorithm.h" #include "../hdr_status.h" #include "../pwl.h" @@ -23,20 +25,17 @@ struct HdrConfig { std::vector<unsigned int> cadence; std::map<unsigned int, std::string> channelMap; + /* Lens shading related parameters. */ + Pwl spatialGain; /* Brightness to gain curve for different image regions. */ + unsigned int diffusion; /* How much to diffuse the gain spatially. */ + /* Tonemap related parameters. */ bool tonemapEnable; uint16_t detailConstant; double detailSlope; double iirStrength; double strength; - /* We must have either an explicit tonemap curve, or the other parameters. */ Pwl tonemap; - Pwl target; /* maps histogram quatile to desired target output value */ - Pwl maxSlope; /* the maximum slope allowed at each point in the mapping */ - double minSlope; /* the minimum allowed slope */ - double maxGain; /* limit to the max absolute gain */ - double step; /* the histogram granularity for building the mapping */ - double speed; /* rate at which tonemap is updated */ /* Stitch related parameters. */ bool stitchEnable; @@ -54,12 +53,14 @@ public: char const *name() const override; void switchMode(CameraMode const &cameraMode, Metadata *metadata) override; int read(const libcamera::YamlObject ¶ms) override; + void prepare(Metadata *imageMetadata) override; void process(StatisticsPtr &stats, Metadata *imageMetadata) override; int setMode(std::string const &mode) override; std::vector<unsigned int> getChannels() const override; private: void updateAgcStatus(Metadata *metadata); + void updateGains(StatisticsPtr &stats, HdrConfig &config); bool updateTonemap(StatisticsPtr &stats, HdrConfig &config); std::map<std::string, HdrConfig> config_; @@ -67,6 +68,9 @@ private: HdrStatus delayedStatus_; /* track the delayed HDR mode and channel */ std::string previousMode_; Pwl tonemap_; + libcamera::Size regions_; /* stats regions */ + unsigned int numRegions_; /* total number of stats regions */ + std::vector<double> gains_[2]; }; } /* namespace RPiController */ |