{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://www.imatest.com/schema/25-1/straylight-settings-normalization-lambertian-light-measurement",
  "title": "Lambertian Light Level Measurement",
  "description": "The user-provided measurement of light levels for Lambertian image normalization.",
  "type": "object",
  "properties": {
    "light_measurement_type": {
      "description": "The user-provided type of light measurement.",
      "type": "string",
      "enum": [
        "Radiometric",
        "Photometric"
      ]
    },
    "luminance_from_lambertian_diffuser_cd_per_m2": {
      "description": "The luminance [cd/m²] from the Lambertian diffuser in the reference image.",
      "type": "number"
    },
    "illuminance_at_the_camera_location_lux": {
      "description": "The illuminance [lux] at the location of the camera for the test image(s).",
      "type": "number"
    },
    "radiance_from_lambertian_diffuser_W_per_m2_per_sr": {
      "description": "The measured radiance [W/m²/sr] from the Lambertian diffuser in the reference image.",
      "type": "number"
    },
    "irradiance_at_the_camera_location_W_per_m2": {
      "description": "The measured irradiance [W/m²] at the location of the camera for the test image(s).",
      "type": "number"
    }
  },
  "required": [
    "light_measurement_type"
  ],
  "unevaluatedProperties": false
}