From bf66a1d25162350a66444e0398cc2d5f90c26e10 Mon Sep 17 00:00:00 2001 From: Naushir Patuck Date: Fri, 16 Dec 2022 13:59:03 +0000 Subject: ipa: raspberrypi: Add a "scientific" tuning for the IMX477 Add a tuning file for the IMX477 more suited to scientific applications. The key differences from the original tuning file are: - Disable ALSC block completely - Pure rec709 gamma curve, and no contrast enhance - New CT curve and CCMs based on the illumination spectrum of a black body radiator up to about 3600 K and the CIE illuminant D for higher color temperatures. Further details on the changes can be found at: https://forums.raspberrypi.com/viewtopic.php?t=343449 All credit for these changes go to Dr. Rolf Henkel. Signed-off-by: Naushir Patuck Signed-off-by: Rolf Henkel Reviewed-by: David Plowman Acked-by: Kieran Bingham Signed-off-by: Kieran Bingham --- src/ipa/raspberrypi/data/imx477_scientific.json | 482 ++++++++++++++++++++++++ src/ipa/raspberrypi/data/meson.build | 1 + 2 files changed, 483 insertions(+) create mode 100755 src/ipa/raspberrypi/data/imx477_scientific.json (limited to 'src/ipa') diff --git a/src/ipa/raspberrypi/data/imx477_scientific.json b/src/ipa/raspberrypi/data/imx477_scientific.json new file mode 100755 index 00000000..17c4ed0a --- /dev/null +++ b/src/ipa/raspberrypi/data/imx477_scientific.json @@ -0,0 +1,482 @@ +{ + "version": 2.0, + "target": "bcm2835", + "algorithms": [ + { + "rpi.black_level": + { + "black_level": 4096 + } + }, + { + "rpi.dpc": { } + }, + { + "rpi.lux": + { + "reference_shutter_speed": 27242, + "reference_gain": 1.0, + "reference_aperture": 1.0, + "reference_lux": 830, + "reference_Y": 17755 + } + }, + { + "rpi.noise": + { + "reference_constant": 0, + "reference_slope": 2.767 + } + }, + { + "rpi.geq": + { + "offset": 204, + "slope": 0.01078 + } + }, + { + "rpi.sdn": { } + }, + { + "rpi.awb": + { + "priors": [ + { + "lux": 0, + "prior": + [ + 2000, 1.0, + 3000, 0.0, + 13000, 0.0 + ] + }, + { + "lux": 800, + "prior": + [ + 2000, 0.0, + 6000, 2.0, + 13000, 2.0 + ] + }, + { + "lux": 1500, + "prior": + [ + 2000, 0.0, + 4000, 1.0, + 6000, 6.0, + 6500, 7.0, + 7000, 1.0, + 13000, 1.0 + ] + } + ], + "modes": + { + "auto": + { + "lo": 2500, + "hi": 8000 + }, + "incandescent": + { + "lo": 2500, + "hi": 3000 + }, + "tungsten": + { + "lo": 3000, + "hi": 3500 + }, + "fluorescent": + { + "lo": 4000, + "hi": 4700 + }, + "indoor": + { + "lo": 3000, + "hi": 5000 + }, + "daylight": + { + "lo": 5500, + "hi": 6500 + }, + "cloudy": + { + "lo": 7000, + "hi": 8600 + } + }, + "bayes": 1, + "ct_curve": + [ + 2000.0, 0.6331025775790707, 0.27424225990946915, + 2200.0, 0.5696117366212947, 0.3116091368689487, + 2400.0, 0.5204264653110015, 0.34892179554105873, + 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"centre-weighted": + { + "weights": [ 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 ] + }, + "spot": + { + "weights": [ 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ] + }, + "matrix": + { + "weights": [ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ] + } + }, + "exposure_modes": + { + "normal": + { + "shutter": [ 100, 10000, 30000, 60000, 66666 ], + "gain": [ 1.0, 2.0, 4.0, 6.0, 8.0 ] + }, + "short": + { + "shutter": [ 100, 5000, 10000, 20000, 33333 ], + "gain": [ 1.0, 2.0, 4.0, 6.0, 8.0 ] + }, + "long": + { + "shutter": [ 100, 10000, 30000, 60000, 120000 ], + "gain": [ 1.0, 2.0, 4.0, 6.0, 12.0 ] + } + }, + "constraint_modes": + { + "normal": [ + { + "bound": "LOWER", + "q_lo": 0.98, + "q_hi": 1.0, + "y_target": + [ + 0, 0.3, + 1000, 0.3 + ] + } + ], + "highlight": [ + { + "bound": "LOWER", + "q_lo": 0.98, + "q_hi": 1.0, + "y_target": + [ + 0, 0.3, + 1000, 0.3 + ] + }, + { + "bound": "UPPER", + "q_lo": 0.98, + "q_hi": 1.0, + "y_target": + [ + 0, 0.8, + 1000, 0.8 + ] + } + ], + "shadows": [ 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'ov5647_noir.json', -- cgit v1.2.1