Question

What is the maximum resolution of the captured images when autocapture is used in mobile DOT SDKs? Is there any downsizing in the case of higher-resolution cameras?

Answer

Regarding the Mobile SDKs, the behavior is fairly straightforward. The maximum resolution returned by the auto-capture component is MAX × 1080, which in most cases corresponds to standard Full HD (1920 × 1080).

The “MAX” value means that if a device has a wider aspect ratio, the captured image may also be wider than 1920 pixels, preserving the original proportions. 

However, the shorter side of the image will always be 1080 pixels, and the longer side is scaled accordingly.

For the Web SDK, the situation is slightly more complex. The preferred resolution is 1920 × 1080, which is used whenever the camera supports it. If the camera does not support this resolution, the closest available resolution (usually lower) is selected instead.

However, there is no strict upper resolution limit configured. That said, we have not encountered any issues related to this so far.

Relevant Product / Version

DOT, Web SDKs any version