Adding Green Screen Video to Screencasts

Here is a helpful video by Scott Skibell  of MacScreencasting.com about adding green screen to video screencasts: http://www.macscreencasting.com/green-screen-video-in-screencasts.html

Here is a link to Wikipedia’s page on “chromakey” which says: “Chroma keying is a technique for mixing two images or frames together in which a color (or a small color range) from one image is removed (or made transparent), revealing another image behind it. This technique is also referred to as color keying, colour-separation overlay (CSO; primarily by the BBC^[1]), greenscreen, and bluescreen.”