Changes

'''Chroma Key''' (commonly referred to as "Greenscreen" or "Bluescreen") is the process of layering videos by removing a colored background in a video. It was pioneered by Larry Butler in the film ''The Thief of Baghdad'' in 1940.<ref>Harrington, R & Carman, R. ''Video Made on a Mac: Production and Postproduction Using Apple Final Cut Studio and Adobe Creative Suite''; Peachpit Press; Berkeley. p. 92, (2009) [http://books.google.com.au/books?id=rcwmRso6hwQC&lpg=PA92&dq=%22history%20of%20chroma%20key%22&pg=PA92#v=onepage&q&f=false]</ref> The Chroma Key method is used frequently for special effects in feature films, but also on a day-to-day basis in television studios, to see meteorologists along with weather information, or other small scale uses.

'''Chroma Key''' (commonly referred to as "Greenscreen" or "Bluescreen") is the process of layering videos by removing a colored background in a video. It was pioneered by Larry Butler in the film ''The Thief of Baghdad'' in 1940.<ref>Harrington, R & Carman, R. ''Video Made on a Mac: Production and Postproduction Using Apple Final Cut Studio and Adobe Creative Suite''; Peachpit Press; Berkeley. p. 92, (2009) [https://books.google.com.au/books?id=rcwmRso6hwQC&lpg=PA92&dq=%22history%20of%20chroma%20key%22&pg=PA92#v=onepage&q&f=false]</ref> The Chroma Key method is used frequently for special effects in feature films, but also on a day-to-day basis in television studios, to see meteorologists along with weather information, or other small scale uses.

==Digital Keying==

==Digital Keying==