I'm testing face recognition on Raspberry Pi 3 and since my first run of OpenCV 3.2 I've got some strange artifacts in displayed screen in places where text is shown (label with confidence for recognized person and date time). Earlier when I was using OpenCV 2.4 everything was fine. Any idea why is happening like this?
Code: https://gist.github.com/anonymous/5c5bcaef8fd3d15de1a589db343d2036
Photo: http://imgur.com/a/XOf41