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authorNaushir Patuck <naush@raspberrypi.com>2022-12-16 13:59:03 +0000
committerKieran Bingham <kieran.bingham@ideasonboard.com>2022-12-19 13:23:10 +0000
commitbf66a1d25162350a66444e0398cc2d5f90c26e10 (patch)
tree25e5fae60e5d04e492e3352a9041cfd38a08d0d4 /src/ipa/raspberrypi/data/imx477_scientific.json
parentb5ef421e0320d4a0578dee0109049637a7ad7a0d (diff)
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 <naush@raspberrypi.com> Signed-off-by: Rolf Henkel <cpixip@pixelcircus.com> Reviewed-by: David Plowman <david.plowman@raspberrypi.com> Acked-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Diffstat (limited to 'src/ipa/raspberrypi/data/imx477_scientific.json')
-rwxr-xr-xsrc/ipa/raspberrypi/data/imx477_scientific.json482
1 files changed, 482 insertions, 0 deletions
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,
+ 2600.0, 0.48148675531667223, 0.38565229719076793,
+ 2800.0, 0.450085403501908, 0.42145684622485047,
+ 3000.0, 0.42436130159169017, 0.45611835670028816,
+ 3200.0, 0.40300023695527337, 0.48950766215198593,
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+ 3600.0, 0.36981508088230314, 0.5522397906415475,
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+ 5100.0, 0.2961860409294588, 0.7068178946570284,
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+ 6100.0, 0.2750265787051251, 0.8006183524920533,
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+ 7100.0, 0.2617955199757274, 0.8746456080032436,
+ 7600.0, 0.25693714288250125, 0.905569559506562,
+ 8100.0, 0.25287531441063316, 0.9331696750390895,
+ 8600.0, 0.24946601483331993, 0.9576820904825795
+ ],
+ "sensitivity_r": 1.05,
+ "sensitivity_b": 1.05,
+ "transverse_pos": 0.0238,
+ "transverse_neg": 0.04429,
+ "coarse_step": 0.1
+ }
+ },
+ {
+ "rpi.agc":
+ {
+ "metering_modes":
+ {
+ "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": [
+ {
+ "bound": "LOWER",
+ "q_lo": 0.0,
+ "q_hi": 0.5,
+ "y_target":
+ [
+ 0, 0.17,
+ 1000, 0.17
+ ]
+ }
+ ]
+ },
+ "y_target":
+ [
+ 0, 0.16,
+ 1000, 0.165,
+ 10000, 0.17
+ ]
+ }
+ },
+ {
+ "rpi.contrast":
+ {
+ "ce_enable": 0,
+ "gamma_curve":
+ [
+ 0, 0,
+ 512, 2304,
+ 1024, 4608,
+ 1536, 6573,
+ 2048, 8401,
+ 2560, 9992,
+ 3072, 11418,
+ 3584, 12719,
+ 4096, 13922,
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+ 61440, 63452,
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+ 65535, 65535
+ ]
+ }
+ },
+ {
+ "rpi.ccm":
+ {
+ "ccms": [
+ {
+ "ct": 2000,
+ "ccm":
+ [
+ 1.5813882365848004, -0.35293683714581114, -0.27378771561617715,
+ -0.4347297185453639, 1.5792631087746074, -0.12102601986382337,
+ 0.2322290578987574, -1.4382672640468128, 2.1386425781770755
+ ]
+ },
+ {
+ "ct": 2200,
+ "ccm":
+ [
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+ -0.3970719209901105, 1.5877868651467202, -0.17249380832122455,
+ 0.20753774825903412, -1.2660673594740142, 2.005654261091916
+ ]
+ },
+ {
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+ "ccm":
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+ 0.1833964516767549, -1.1339155942419321, 1.9089342978542396
+ ]
+ },
+ {
+ "ct": 2600,
+ "ccm":
+ [
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+ -0.33972082628066275, 1.5944888273736966, -0.2453979465898787,
+ 0.1615577497676328, -1.0298684958833109, 1.8357854177422053
+ ]
+ },
+ {
+ "ct": 2800,
+ "ccm":
+ [
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+ -0.3171703484479931, 1.5955820297498486, -0.2727395854813966,
+ 0.14230870739974305, -0.9460976023551511, 1.778709391659538
+ ]
+ },
+ {
+ "ct": 3000,
+ "ccm":
+ [
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+ -0.2975654035173307, 1.5960425637021738, -0.2961043416505157,
+ 0.12546426281675097, -0.8773434727076518, 1.7330356805246685
+ ]
+ },
+ {
+ "ct": 3200,
+ "ccm":
+ [
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+ ]
+ },
+ {
+ "ct": 3400,
+ "ccm":
+ [
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+ ]
+ },
+ {
+ "ct": 3600,
+ "ccm":
+ [
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+ ]
+ },
+ {
+ "ct": 4100,
+ "ccm":
+ [
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+ ]
+ },
+ {
+ "ct": 4600,
+ "ccm":
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+ ]
+ },
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+ ]
+ },
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+ ]
+ },
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+ "ccm":
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+ ]
+ },
+ {
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+ ]
+ },
+ {
+ "ct": 7100,
+ "ccm":
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+ ]
+ },
+ {
+ "ct": 7600,
+ "ccm":
+ [
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+ ]
+ },
+ {
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+ "ccm":
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+ ]
+ },
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+ ]
+ }
+ ]
+ }
+ },
+ {
+ "rpi.sharpen": { }
+ },
+ {
+ "rpi.focus": { }
+ }
+ ]
+} \ No newline at end of file