Image quality estimation#
The image quality estimation evaluates an image based on several key criteria to ensure it meets the necessary standards. These criteria include:
- Blurriness: The image appears out of focus.
- Underexposure: The image is too dark.
- Overexposure: The image is too bright.
- Uneven illumination: The face in the image has significant contrast between dark and light regions.
- Specularity: The image contains flares or overly reflective areas on the face.
To perform the estimation, LUNA ID uses the LUNA SDK SubjectiveQuality estimator. For details, see Image Quality Estimation.
Default values#
Below are the default values for each criterion used in the image quality estimation:
| Parameter | Default value |
|---|---|
| Blurriness | 0.61 |
| Lightness | 0.57 |
| Darkness | 0.50 |
| Illumination | 0.1 |
| Specularity | 0.1 |