Originally Posted By: Mac
From the days of Analog Video, the process of using a single color backdrop that can then be edited to place a different scene on it is called, "Chroma Key" process.

Many of the digital editors, etc. will use this same name in their menus and commands, but, of course, use digital algorithms to accomplish the same task. Much the same idea as Audio plugins that emulate older and known analog processes, such as audio "compressors" etc.

Chroma Key


--Mac

Yep found that out last night.Thanks

John
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