> For the complete documentation index, see [llms.txt](https://doc.ozforensics.com/oz-knowledge/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://doc.ozforensics.com/oz-knowledge/other/media-quality-requirements.md).

# Media Quality Requirements

{% hint style="info" %}
If your media meets the listed requirements, this ensures the highest analysis accuracy. If media does not meet the minimal requirements, accuracy is not guaranteed. 
{% endhint %}

We highly recommend using our SDK to capture media. This ensures your media meets all requirements, and you receive the most reliable analysis results.

## Common Media Requirements <a href="#h.y1nmy3kgxvj" id="h.y1nmy3kgxvj"></a>

* There shouldn't be more than one face in the frame (except photos of documents).
* The face should be in the center of the frame (except photos of documents).
* Orientation: portrait or landscape.
* Liveness images should have 3 channels.

## Video Quality Requirements <a href="#h.j2c6cxdjrkzr" id="h.j2c6cxdjrkzr"></a>

| **Parameter** | **Requirements**                                                                                                                                                                                                                                                                                                         |
| ------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| Video length  | <ul><li>up to 5 seconds</li></ul>                                                                                                                                                                                                                                                                                        |
| Bitrate       | <ul><li>recommended – 10000 Kbit/sec</li></ul>                                                                                                                                                                                                                                                                           |
| Resolution    | <ul><li>minimum – 480p</li><li>recommended – 720p</li></ul>                                                                                                                                                                                                                                                              |
| Angle         | <ul><li>full-face</li><li>the eye line is horizontal</li></ul><p>Deviation of the face from the vertical direction:</p><ul><li>minimum – 30 degrees or less</li><li>recommended – 15 degrees or less</li></ul>                                                                                                           |
| Brightness    | <p>Minimum:</p><ul><li>the eye area is not too dark</li><li>the background is not too bright</li></ul><p>Recommended:</p><ul><li>the face shape is clear</li><li>the eye area is not too dark</li><li>the background is not too bright</li><li>the face should be evenly illuminated without glares or shadows</li></ul> |
| Face size     | <p>Portrait:</p><ul><li>50-80% of the frame height</li><li>40-60% of the frame width</li></ul><p>Lanscape:</p><ul><li>50-80% of the frame height</li><li>15-25% of the frame width</li></ul>                                                                                                                             |
| Video format  | <p>Recommended:</p><ul><li>MPEG/MPG</li><li>QuickTime/MOV</li><li>MP4</li></ul><p>Also possible:</p><ul><li>OGG</li><li>WebM</li><li>WMV</li><li>AVI</li></ul>                                                                                                                                                           |

## Image Quality Requirements <a href="#h.picbxtifpkq0" id="h.picbxtifpkq0"></a>

The requirements below refer to photos taken at the time the check is being performed.

| **Parameter** | **Requirements**                                                                                                                                                                                                                                                                                                         |
| ------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| Resolution    | <ul><li>minimum – 480×640 (252×300 for Oz Biometry)</li><li>recommended – 720×1280</li></ul>                                                                                                                                                                                                                             |
| Angle         | <ul><li>full-face</li><li>the eye line is horizontal</li></ul><p>Deviation of the face from the vertical direction:</p><ul><li>minimum – 30 degrees or less</li><li>recommended – 15 degrees or less</li></ul>                                                                                                           |
| Brightness    | <p>Minimum:</p><ul><li>the eye area is not too dark</li><li>the background is not too bright</li></ul><p>Recommended:</p><ul><li>the face shape is clear</li><li>the eye area is not too dark</li><li>the background is not too bright</li><li>the face should be evenly illuminated without glares or shadows</li></ul> |
| Face size     | <p>Portrait:</p><ul><li>50-80% of the frame height (for Oz Biometry, from 15%, but not less than 112)</li><li>40-60% of the frame width</li></ul><p>Landscape:</p><ul><li>50-80% of the frame height (for Oz Biometry, from 15%, but not less than 112)</li><li>15-25% of the frame width</li></ul>                      |
| Image format  | <ul><li>JPG</li><li>JPEG</li></ul>                                                                                                                                                                                                                                                                                       |

## Documents Requirements <a href="#h.33gxlfc0963b" id="h.33gxlfc0963b"></a>

* No glares or shadows.
* The background is not too bright.
* The face on a photo is in focus and has no objects on it.
* Minimum size of face on photo – 10% of the frame height, but not less than 112×112.
* Photos of documents should not be compressed.


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