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chroma key
Last modified: Tuesday, January 09, 2007
In graphics and digital video editing programs, chroma key is a function that
renders a specific color
in a layer transparent. In television and film, it's the technique of
using a monochromatic background for the purpose of replacing it with a
different image or scene in post-production. In the film industry it's called
blue screen.
Studio 1: Chroma Key Lighting One of the most often asked questions is, "How do I get all of these little jaggies off of the edges of my Chroma-keyed subject?" And the popular cure-all seems to be the proper lighting of your Chroma-key blue wall (or back-drop). Not just a wimpy little 100 watt light aimed somewhere in the general direction of the background, but a host of lights that literally flood the background.
The Blue Screen Page Welcome to the world of Blue Screen. Once the exclusive domain of Hollywood special effects artists, blue screen imaging has expanded to include video and computers. There are many mysteries to the successful execution of a blue screen composite and considerable confusion as to what a blue screen composite is.
