Liveness

Deprecated since version 0.17.

Estimate score for eyes blink.

Returns

The ERRORCODE, left wink score, right wink score, in that order. Wink score indicates likelihood of eye being open (0 is closed, 1 is open). Optimal threshold is 0.4 in normal use and 0.1 in low light conditions.

Use the following guidelines for best performance:

  • Camera should see frontal view of the face

  • The eyes should be looking directly into the camera

  • The face should be 1 - 2 ft from the camera

  • Recommended 640 x 480 resolution or better

  • Ensure there is good lighting illuminating the eyes

_images/blink_detection_distance.png _images/blink_detection_lighting.png