FaceLandmarks68: left and right eyes/brows are reversed.

Hello,

FaceLandmarks68.getLeftEye() returns points corresponding to the right eye, and FaceLandmarks68.getRightEye() returns points corresponding to the left eye. Same issue for the FaceLandmarks68.getLeftEyeBrow() and FaceLandmarks68.getRightEyeBrow().

[a-bronx]

By default source images and source video streams come non-mirrored, so it should be a baseline. If I need to flip photo/video, I use CSS on the whole canvas (e.g. transform: scaleX(-1);) instead of processing the source frame, which is much cheaper, especially for a web camera video stream.

But here is a catch: if I mirror the video in a browser using CSS , then I cannot use the drawDetection() anymore because score text under the bounded box becomes mirrored too and not readable. It is a non-issue for me as I draw a custom face boundary anyway, so just letting you know 😃 But if you decide to make drawDetection() support drawing over a mirrored representation and flip text labels accordingly, then you need a parameter here.

[a-bronx]

My case is a face liveness check based on certain statistic of relative movements of landmark points in a video stream. Before making the check, I validate the face geometry to ensure it is not distorted due to fast movement, glasses etc (which sometime happens), so these garbled “Picasso-like” frames do not affect the statistics. As part of this sanity check I verify that the right eye is correctly positioned relative to the left eye. The assumption is that in a normal (non-mirrored) photo/video frame the subjects’ right eye will be closer to the left border of the frame than the left one. But the FaceLandmarks68 does not support this assumption, my code was not working and I had to debug to find out that method names are misleading.