CAER_Video_GUI. Video GUI, python examples for caer with rather simple interfaces, one of which will allow you to apply some visual effects to the video, do a face detection as well as save camera video. Either select a camera as a source or play a video file. Take a screenshot of the current frame. The whole shebang requires python3 with tkinter and caer (Computer or Machine Vision library leveraging use of OpenCV). Also included is image editor GUI.