Video Chroma Keying is also known as "blue screening" in the movie industry. You may have seen it in action before, where an actor stands in front of a large blue screen and acts out the scene by himself.
Next, the camera operators slip a background in behind him, making it appear that the actor is bounding from building to building or climbing the side of a volcano in an attempt to destroy an evil ring!
Chroma Keying is a feature that comes with many cameras. That means that you can make your own amazing shots and impossible action scenes in the comfort of your living room.
You should be warned, however, that Chroma Keying is considered a skill on its own right. Correctly keying the color you want to use in order to avoid "color bleeding" can be a tedious and time-consuming process. Also, shooting with a video camera (as opposed to still photography) means that this work needs to be done in real-time, making it even more difficult.
Nonetheless, Chroma Keying can be a great way to add a little excitement to your video footage. Are those home movies of your kids turning into hours of boring footage of them playing in the sandbox? No problem! Next time, Key them into an island in the South Pacific, happily building sandcastles while World War Two rages all around them!
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