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>
This commit is contained in:
Naushir Patuck 2022-12-16 13:59:03 +00:00 committed by Kieran Bingham
parent b5ef421e03
commit bf66a1d251
2 changed files with 483 additions and 0 deletions

View file

@ -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,
3400.0, 0.3850520052612984, 0.5215567075837261,
3600.0, 0.36981508088230314, 0.5522397906415475,
4100.0, 0.333468007836758, 0.5909770465167908,
4600.0, 0.31196097364221376, 0.6515706327327178,
5100.0, 0.2961860409294588, 0.7068178946570284,
5600.0, 0.2842607232745885, 0.7564837749584288,
6100.0, 0.2750265787051251, 0.8006183524920533,
6600.0, 0.2677057225584924, 0.8398879225373039,
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,
4608, 15045,
5120, 16103,
5632, 17104,
6144, 18056,
6656, 18967,
7168, 19839,
7680, 20679,
8192, 21488,
9216, 23028,
10240, 24477,
11264, 25849,
12288, 27154,
13312, 28401,
14336, 29597,
15360, 30747,
16384, 31856,
17408, 32928,
18432, 33966,
19456, 34973,
20480, 35952,
22528, 37832,
24576, 39621,
26624, 41330,
28672, 42969,
30720, 44545,
32768, 46065,
34816, 47534,
36864, 48956,
38912, 50336,
40960, 51677,
43008, 52982,
45056, 54253,
47104, 55493,
49152, 56704,
51200, 57888,
53248, 59046,
55296, 60181,
57344, 61292,
59392, 62382,
61440, 63452,
63488, 64503,
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":
[
1.6322048484088305, -0.45932286857238486, -0.21373542690252198,
-0.3970719209901105, 1.5877868651467202, -0.17249380832122455,
0.20753774825903412, -1.2660673594740142, 2.005654261091916
]
},
{
"ct": 2400,
"ccm":
[
1.6766610071470398, -0.5447101051688111, -0.16838641107407676,
-0.3659845183388154, 1.592223692670396, -0.2127091997471162,
0.1833964516767549, -1.1339155942419321, 1.9089342978542396
]
},
{
"ct": 2600,
"ccm":
[
1.7161984340622154, -0.6152585785678794, -0.1331100845092582,
-0.33972082628066275, 1.5944888273736966, -0.2453979465898787,
0.1615577497676328, -1.0298684958833109, 1.8357854177422053
]
},
{
"ct": 2800,
"ccm":
[
1.7519307259815728, -0.6748682080165339, -0.10515169074540848,
-0.3171703484479931, 1.5955820297498486, -0.2727395854813966,
0.14230870739974305, -0.9460976023551511, 1.778709391659538
]
},
{
"ct": 3000,
"ccm":
[
1.7846716625128374, -0.7261240476375332, -0.08274697420358428,
-0.2975654035173307, 1.5960425637021738, -0.2961043416505157,
0.12546426281675097, -0.8773434727076518, 1.7330356805246685
]
},
{
"ct": 3200,
"ccm":
[
1.8150085872943436, -0.7708109672515514, -0.06469468211419174,
-0.2803468940646277, 1.596168842967451, -0.3164044170681625,
0.11071494533513807, -0.8199772290209191, 1.69572135046367
]
},
{
"ct": 3400,
"ccm":
[
1.8433668304932087, -0.8102060605062592, -0.05013485852801454,
-0.2650934036324084, 1.5961288492969294, -0.33427554893845535,
0.0977478941863518, -0.7714303112098978, 1.6647070820146963
]
},
{
"ct": 3600,
"ccm":
[
1.8700575831917468, -0.8452518300291346, -0.03842644337477299,
-0.2514794528347016, 1.5960178299141876, -0.3501774949366156,
0.08628520830733245, -0.729841503339915, 1.638553343939267
]
},
{
"ct": 4100,
"ccm":
[
1.8988700903560716, -0.8911278803351247, -0.018848644425650693,
-0.21487101487384094, 1.599236541382614, -0.39405450457918206,
0.08251488056482173, -0.7178919368326191, 1.6267009056502704
]
},
{
"ct": 4600,
"ccm":
[
1.960355191764125, -0.9624344812121991, -0.0017122408632169205,
-0.19444620905212898, 1.5978493736948447, -0.416727638296156,
0.06310261513271084, -0.6483790952487849, 1.5834605477213093
]
},
{
"ct": 5100,
"ccm":
[
2.014680536961399, -1.0195930302148566, 0.007728256612638915,
-0.17751999660735496, 1.5977081555831, -0.4366085498741474,
0.04741267583041334, -0.5950327902073489, 1.5512919847321853
]
},
{
"ct": 5600,
"ccm":
[
2.062652337917251, -1.0658386679125478, 0.011886354256281267,
-0.16319197721451495, 1.598363237584736, -0.45422061523742235,
0.03465810928795378, -0.5535454108047286, 1.5269025836946852
]
},
{
"ct": 6100,
"ccm":
[
2.104985902038069, -1.103597868736314, 0.012503517136539277,
-0.15090797064906178, 1.5994703078166095, -0.4698414300864995,
0.02421766063474242, -0.5208922818196823, 1.5081270847783788
]
},
{
"ct": 6600,
"ccm":
[
2.1424988751299714, -1.134760232367728, 0.010730356010435522,
-0.14021846798466234, 1.600822462230719, -0.48379204794526487,
0.015521315410496622, -0.49463630325832275, 1.4933313534840327
]
},
{
"ct": 7100,
"ccm":
[
2.1758034100130925, -1.1607558481037359, 0.007452724895469076,
-0.13085694672641826, 1.6022648614493245, -0.4962330524084075,
0.008226943206113427, -0.4733077192319791, 1.4815336120437468
]
},
{
"ct": 7600,
"ccm":
[
2.205529206931895, -1.1826662383072108, 0.0032019529917605167,
-0.122572009780486, 1.6037258133595753, -0.5073973734282445,
0.0020132587619863425, -0.4556590236414181, 1.471939788496745
]
},
{
"ct": 8100,
"ccm":
[
2.232224969223067, -1.2013672897252885, -0.0016234598095482985,
-0.11518026734442414, 1.6051544769439803, -0.5174558699422255,
-0.0033378143542219835, -0.4408590373867774, 1.4640252230667452
]
},
{
"ct": 8600,
"ccm":
[
2.256082295891265, -1.2173210549996634, -0.0067231350481711675,
-0.10860272839843167, 1.6065150139140594, -0.5264728573611493,
-0.007952618707984149, -0.4284003574050791, 1.4574646927117558
]
}
]
}
},
{
"rpi.sharpen": { }
},
{
"rpi.focus": { }
}
]
}

View file

@ -9,6 +9,7 @@ conf_files = files([
'imx378.json', 'imx378.json',
'imx477.json', 'imx477.json',
'imx477_noir.json', 'imx477_noir.json',
'imx477_scientific.json',
'imx519.json', 'imx519.json',
'ov5647.json', 'ov5647.json',
'ov5647_noir.json', 'ov5647_noir.json',