Very useful for clipping a person, replacing the background scenery or applying post-fx on an person.
Simply place this mask on a video input or any other 2D generator. If the image on which you place this effect contains a person, this one will be automatically cut out. Beware, this algorithm detects webcam images more easily than others. It will therefore be easier to automatically divert someone if the frame ends above the legs.

Original Frame

Applied without alpha

Applied with alpha