[v2,3/5] ipa: rpi: vc4: Add Mira220 tuning file

27501 diff mbox series

From: Philippe Baetens <philippebaetens@gmail.com>

Add tuning file for the Mira220 RGB version to the RaspberryPi VC4 IPA.

This patch upports the Mira220 support available at
https://github.com/ams-OSRAM/libcamera.git at revision d7d5e17ec961
("update json files so they are truly mono").

Signed-off-by: Philippe Baetens <philippebaetens@gmail.com>
Signed-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Acked-by: Naushir Patuck <naush@raspberrypi.com>
---
 src/ipa/rpi/vc4/data/meson.build  |   1 +
 src/ipa/rpi/vc4/data/mira220.json | 370 ++++++++++++++++++++++++++++++++++++++
 2 files changed, 371 insertions(+)

Quoting Jacopo Mondi (2026-07-24 16:47:42)
> From: Philippe Baetens <philippebaetens@gmail.com>
> 
> Add tuning file for the Mira220 RGB version to the RaspberryPi VC4 IPA.
> 
> This patch upports the Mira220 support available at
> https://github.com/ams-OSRAM/libcamera.git at revision d7d5e17ec961
> ("update json files so they are truly mono").

And also here.


Acked-by: Kieran Bingham <kieran.bingham@ideasonboard.com>

> 
> Signed-off-by: Philippe Baetens <philippebaetens@gmail.com>
> Signed-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
> Acked-by: Naushir Patuck <naush@raspberrypi.com>
> ---
>  src/ipa/rpi/vc4/data/meson.build  |   1 +
>  src/ipa/rpi/vc4/data/mira220.json | 370 ++++++++++++++++++++++++++++++++++++++
>  2 files changed, 371 insertions(+)
> 
> diff --git a/src/ipa/rpi/vc4/data/meson.build b/src/ipa/rpi/vc4/data/meson.build
> index 6efa53cb3873..763c7a0e8a58 100644
> --- a/src/ipa/rpi/vc4/data/meson.build
> +++ b/src/ipa/rpi/vc4/data/meson.build
> @@ -21,6 +21,7 @@ conf_files = files([
>      'imx708_noir.json',
>      'imx708_wide.json',
>      'imx708_wide_noir.json',
> +    'mira220.json',
>      'ov5647.json',
>      'ov5647_noir.json',
>      'ov64a40.json',
> diff --git a/src/ipa/rpi/vc4/data/mira220.json b/src/ipa/rpi/vc4/data/mira220.json
> new file mode 100644
> index 000000000000..1b47c13d9463
> --- /dev/null
> +++ b/src/ipa/rpi/vc4/data/mira220.json
> @@ -0,0 +1,370 @@
> +{
> +    "version": 2.0,
> +    "target": "bcm2835",
> +    "algorithms": [
> +        {
> +            "rpi.black_level":
> +            {
> +                "black_level": 2500
> +            }
> +        },
> +        {
> +            "rpi.dpc": { }
> +        },
> +        {
> +            "rpi.lux":
> +            {
> +                "reference_shutter_speed": 33316,
> +                "reference_gain": 1.0,
> +                "reference_aperture": 1.0,
> +                "reference_lux": 530,
> +                "reference_Y": 9873
> +            }
> +        },
> +        {
> +            "rpi.noise":
> +            {
> +                "reference_constant": 0,
> +                "reference_slope": 1.449
> +            }
> +        },
> +        {
> +            "rpi.geq":
> +            {
> +                "offset": 271,
> +                "slope": 0.00179
> +            }
> +        },
> +        {
> +            "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":
> +                [
> +                    3200.0, 0.8663, 0.5414,
> +                    5000.0, 0.7241, 0.6964,
> +                    6420.0, 0.6597, 0.7718,
> +                    7900.0, 0.6173, 0.8232,
> +                    8800.0, 0.5982, 0.8468
> +                ],
> +                "sensitivity_r": 1.0,
> +                "sensitivity_b": 1.0,
> +                "transverse_pos": 0.03,
> +                "transverse_neg": 0.03
> +            }
> +        },
> +        {
> +            "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, 120000 ],
> +                        "gain": [ 1.0, 2.0, 4.0, 6.0, 6.0 ]
> +                    },
> +                    "short":
> +                    {
> +                        "shutter": [ 100, 5000, 10000, 20000, 120000 ],
> +                        "gain": [ 1.0, 2.0, 4.0, 6.0, 6.0 ]
> +                    }
> +                },
> +                "constraint_modes":
> +                {
> +                    "normal": [
> +                        {
> +                            "bound": "LOWER",
> +                            "q_lo": 0.98,
> +                            "q_hi": 1.0,
> +                            "y_target":
> +                            [
> +                                0, 0.5,
> +                                1000, 0.5
> +                            ]
> +                        }
> +                    ],
> +                    "highlight": [
> +                        {
> +                            "bound": "LOWER",
> +                            "q_lo": 0.98,
> +                            "q_hi": 1.0,
> +                            "y_target":
> +                            [
> +                                0, 0.5,
> +                                1000, 0.5
> +                            ]
> +                        },
> +                        {
> +                            "bound": "UPPER",
> +                            "q_lo": 0.98,
> +                            "q_hi": 1.0,
> +                            "y_target":
> +                            [
> +                                0, 0.8,
> +                                1000, 0.8
> +                            ]
> +                        }
> +                    ]
> +                },
> +                "y_target":
> +                [
> +                    0, 0.16,
> +                    1000, 0.165,
> +                    10000, 0.17
> +                ]
> +            }
> +        },
> +        {
> +            "rpi.alsc":
> +            {
> +                "omega": 1.3,
> +                "n_iter": 100,
> +                "luminance_strength": 0.5,
> +                "calibrations_Cr": [
> +                    {
> +                        "ct": 5440,
> +                        "table":
> +                        [
> +                            1.785, 1.781, 1.763, 1.751, 1.739, 1.737, 1.735, 1.735, 1.733, 1.734, 1.735, 1.739, 1.747, 1.758, 1.781, 1.784,
> +                            1.781, 1.763, 1.751, 1.736, 1.725, 1.721, 1.717, 1.716, 1.717, 1.719, 1.719, 1.728, 1.735, 1.745, 1.763, 1.781,
> +                            1.761, 1.748, 1.734, 1.723, 1.713, 1.707, 1.701, 1.699, 1.699, 1.703, 1.706, 1.711, 1.718, 1.729, 1.745, 1.758,
> +                            1.748, 1.734, 1.722, 1.711, 1.702, 1.694, 1.689, 1.688, 1.688, 1.689, 1.694, 1.701, 1.709, 1.718, 1.729, 1.743,
> +                            1.735, 1.723, 1.713, 1.702, 1.694, 1.688, 1.684, 1.681, 1.682, 1.686, 1.689, 1.694, 1.701, 1.709, 1.724, 1.739,
> +                            1.735, 1.721, 1.711, 1.699, 1.691, 1.685, 1.681, 1.679, 1.679, 1.682, 1.686, 1.691, 1.699, 1.708, 1.721, 1.739,
> +                            1.735, 1.721, 1.711, 1.699, 1.692, 1.685, 1.683, 1.679, 1.679, 1.681, 1.687, 1.691, 1.699, 1.709, 1.723, 1.741,
> +                            1.738, 1.727, 1.716, 1.703, 1.696, 1.689, 1.685, 1.683, 1.683, 1.686, 1.689, 1.695, 1.702, 1.714, 1.726, 1.741,
> +                            1.746, 1.734, 1.723, 1.712, 1.702, 1.696, 1.691, 1.688, 1.688, 1.689, 1.695, 1.702, 1.708, 1.719, 1.734, 1.745,
> +                            1.758, 1.746, 1.731, 1.722, 1.712, 1.704, 1.699, 1.697, 1.697, 1.699, 1.702, 1.708, 1.718, 1.729, 1.744, 1.758,
> +                            1.775, 1.759, 1.746, 1.732, 1.724, 1.717, 1.713, 1.709, 1.708, 1.709, 1.714, 1.721, 1.729, 1.743, 1.759, 1.775,
> +                            1.777, 1.775, 1.758, 1.742, 1.735, 1.729, 1.727, 1.725, 1.724, 1.724, 1.726, 1.732, 1.741, 1.758, 1.775, 1.777
> +                        ]
> +                    }
> +                ],
> +                "calibrations_Cb": [
> +                    {
> +                        "ct": 5440,
> +                        "table":
> +                        [
> +                            1.547, 1.551, 1.558, 1.571, 1.579, 1.586, 1.587, 1.585, 1.587, 1.588, 1.588, 1.586, 1.578, 1.566, 1.558, 1.555,
> +                            1.551, 1.554, 1.565, 1.582, 1.589, 1.597, 1.599, 1.596, 1.595, 1.596, 1.598, 1.597, 1.586, 1.576, 1.566, 1.558,
> +                            1.561, 1.565, 1.577, 1.592, 1.602, 1.608, 1.612, 1.613, 1.613, 1.612, 1.613, 1.611, 1.601, 1.588, 1.575, 1.572,
> +                            1.569, 1.575, 1.589, 1.605, 1.619, 1.623, 1.625, 1.626, 1.626, 1.626, 1.626, 1.623, 1.609, 1.595, 1.584, 1.584,
> +                            1.581, 1.582, 1.596, 1.611, 1.623, 1.628, 1.629, 1.632, 1.633, 1.633, 1.633, 1.625, 1.617, 1.601, 1.589, 1.587,
> +                            1.579, 1.584, 1.597, 1.614, 1.624, 1.631, 1.631, 1.632, 1.632, 1.633, 1.631, 1.629, 1.621, 1.605, 1.592, 1.587,
> +                            1.577, 1.582, 1.599, 1.616, 1.626, 1.631, 1.631, 1.633, 1.633, 1.633, 1.633, 1.629, 1.622, 1.608, 1.592, 1.589,
> +                            1.577, 1.581, 1.596, 1.614, 1.624, 1.627, 1.629, 1.631, 1.633, 1.634, 1.633, 1.628, 1.622, 1.605, 1.593, 1.591,
> +                            1.575, 1.577, 1.592, 1.606, 1.619, 1.625, 1.627, 1.628, 1.629, 1.629, 1.631, 1.626, 1.613, 1.599, 1.591, 1.588,
> +                            1.567, 1.569, 1.579, 1.597, 1.606, 1.615, 1.617, 1.616, 1.616, 1.621, 1.621, 1.617, 1.608, 1.592, 1.579, 1.573,
> +                            1.549, 1.554, 1.563, 1.578, 1.589, 1.594, 1.597, 1.596, 1.597, 1.601, 1.599, 1.597, 1.584, 1.572, 1.562, 1.558,
> +                            1.539, 1.548, 1.553, 1.566, 1.575, 1.578, 1.578, 1.579, 1.582, 1.584, 1.584, 1.583, 1.572, 1.562, 1.553, 1.546
> +                        ]
> +                    }
> +                ],
> +                "luminance_lut":
> +                [
> +                    1.317, 1.282, 1.245, 1.211, 1.191, 1.178, 1.164, 1.149, 1.149, 1.146, 1.171, 1.174, 1.201, 1.235, 1.269, 1.287,
> +                    1.316, 1.259, 1.219, 1.191, 1.169, 1.147, 1.133, 1.121, 1.114, 1.123, 1.145, 1.157, 1.183, 1.212, 1.257, 1.285,
> +                    1.285, 1.231, 1.196, 1.165, 1.139, 1.115, 1.103, 1.092, 1.085, 1.096, 1.115, 1.131, 1.161, 1.187, 1.227, 1.257,
> +                    1.249, 1.213, 1.171, 1.141, 1.111, 1.091, 1.078, 1.068, 1.065, 1.069, 1.089, 1.128, 1.138, 1.174, 1.213, 1.244,
> +                    1.234, 1.197, 1.151, 1.129, 1.096, 1.077, 1.066, 1.057, 1.049, 1.052, 1.074, 1.103, 1.123, 1.162, 1.199, 1.229,
> +                    1.218, 1.179, 1.154, 1.116, 1.094, 1.071, 1.061, 1.054, 1.044, 1.049, 1.068, 1.085, 1.119, 1.145, 1.183, 1.218,
> +                    1.222, 1.198, 1.151, 1.124, 1.099, 1.075, 1.058, 1.049, 1.048, 1.053, 1.064, 1.088, 1.109, 1.145, 1.176, 1.209,
> +                    1.243, 1.203, 1.172, 1.139, 1.104, 1.094, 1.068, 1.056, 1.058, 1.062, 1.077, 1.088, 1.121, 1.155, 1.191, 1.227,
> +                    1.264, 1.231, 1.185, 1.165, 1.131, 1.108, 1.091, 1.075, 1.075, 1.081, 1.096, 1.107, 1.135, 1.172, 1.209, 1.248,
> +                    1.292, 1.251, 1.221, 1.184, 1.156, 1.143, 1.117, 1.104, 1.097, 1.107, 1.121, 1.138, 1.156, 1.197, 1.231, 1.275,
> +                    1.336, 1.287, 1.251, 1.214, 1.186, 1.175, 1.151, 1.136, 1.133, 1.135, 1.148, 1.168, 1.184, 1.225, 1.265, 1.309,
> +                    1.339, 1.323, 1.272, 1.239, 1.205, 1.184, 1.177, 1.166, 1.163, 1.172, 1.187, 1.199, 1.223, 1.246, 1.294, 1.321
> +                ],
> +                "sigma": 0.005,
> +                "sigma_Cb": 0.005
> +            }
> +        },
> +        {
> +            "rpi.contrast":
> +            {
> +                "ce_enable": 1,
> +                "gamma_curve":
> +                [
> +                0,0,
> +                1024,5432.589474,
> +                2048,10065.38105,
> +                3072,13318.46737,
> +                4096,16504.72421,
> +                5120,19457.07789,
> +                6144,22409.43158,
> +                7168,24999.61263,
> +                8192,27749.32211,
> +                9216,30118.53474,
> +                10240,32374.56842,
> +                11264,34498.02105,
> +                12288,36621.47368,
> +                13312,38604.8,
> +                14336,40528.84211,
> +                15360,42218.98105,
> +                16384,43807.79789,
> +                18432,46757.99579,
> +                20480,49312.60632,
> +                22528,51472.70737,
> +                24576,53486.21474,
> +                26624,55245.33895,
> +                28672,56802.89684,
> +                30720,57986.42526,
> +                32768,59150.55158,
> +                36864,61452.93474,
> +                40960,63224.99368,
> +                45056,64624.10105,
> +                49152,65535,
> +                53248,65535,
> +                57344,65535,
> +                61440,65535,
> +                65535,65535
> +                ]
> +            }
> +        },
> +        {
> +            "rpi.ccm":
> +            {
> +            "saturation": [0,0,100,0.6,1000,1,10000,1],
> +                "ccms": [
> +                    {
> +                        "ct": 3200,
> +                        "ccm":
> +                        [
> +                            1.58652, 0.12247, -0.70899,
> +                            -0.88406, 2.29465, -0.41059,
> +                            -0.56176, 0.41247, 1.14928
> +                        ]
> +                    },
> +                    {
> +                        "ct": 5000,
> +                        "ccm":
> +                        [
> +                            1.95623, 0.41006, -1.36629,
> +                            -0.78719, 2.27844, -0.49125,
> +                            -0.72722, 0.10062, 1.62659
> +                        ]
> +                    },
> +                    {
> +                        "ct": 6420,
> +                        "ccm":
> +                        [
> +                            1.81505, 0.31616, -1.13121,
> +                            -0.63029, 2.05535, -0.42506,
> +                            -0.50025, -0.11887, 1.61912
> +                        ]
> +                    },
> +                    {
> +                        "ct": 7900,
> +                        "ccm":
> +                        [
> +                            1.77947, 0.24161, -1.02108,
> +                            -0.55019, 1.96917, -0.41898,
> +                            -0.40238, -0.17695, 1.57932
> +                        ]
> +                    },
> +                    {
> +                        "ct": 8800,
> +                        "ccm":
> +                        [
> +                            1.77695, 0.21166, -0.98861,
> +                            -0.51589, 1.93469, -0.41881,
> +                            -0.36973, -0.19069, 1.56043
> +                        ]
> +                    }
> +                    
> +                ]
> +            }
> +        },
> +        {
> +            "rpi.sharpen": { }
> +        }
> +    ]
> +}
> 
> -- 
> 2.54.0
>