Helpers

Helper scripts used by several categories of demos. They can hide the complexity of the lib.

Canvas2DDisplay.js: see canvas 2D - face detection and tracking demo. Helper for Canvas2D rendering.
HeadControls.js: see Head controlled demos (Head controlled Pacman for example)
JeelizThreeHelper.js: cf THREE.JS multiple face tracking demo
JeelizResize.js: Helper to find the best canvas and webcam resolutions. Explained in the Optimization section of the main README
JeelizFaceCut.js: Helper to cut the face in 2D from the video, and processing color correction. It is used in the FaceSwap demo