Difference between revisions of "Chroma Key"
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| − | + | '''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. | |
| − | Chroma Key (commonly referred to as "Greenscreen" or "Bluescreen") is the process of layering videos by removing a colored background in a video. | ||
==Digital Keying== | ==Digital Keying== | ||
| − | In recent years, most all Chroma Key work has been done digitally, by using computers to remove pixels of the exact color of the background. | + | In recent years, most all Chroma Key work has been done digitally, by using computers to remove pixels of the exact color of the background. [[Computer]]s that process these images in real time enable [[television]] studios to underlay images, such as weather maps, during a live news broadcast. |
==Film Methods== | ==Film Methods== | ||
The early concept of Chroma Key was accomplished by different methods of chemically processing the film to render the background transparent. | The early concept of Chroma Key was accomplished by different methods of chemically processing the film to render the background transparent. | ||
| − | [[ | + | [[Category:Media]] |
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| + | ==References== | ||
| + | <references/> | ||
Latest revision as of 14:46, September 26, 2018
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.[1] 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
In recent years, most all Chroma Key work has been done digitally, by using computers to remove pixels of the exact color of the background. Computers that process these images in real time enable television studios to underlay images, such as weather maps, during a live news broadcast.
Film Methods
The early concept of Chroma Key was accomplished by different methods of chemically processing the film to render the background transparent.