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Chroma Key; "The process of overlaying one video
signal over another, the areas of overlay being defined by a specific
range of colour, or chrominance, on the background signal" (Quantel
Digital Factbook).
We've collected some information on Chroma Key Backgrounds below,
a staple to a chromakeyer's arsenal. If there is any additional information
missing from these pages that you think is relevant, please feel free
to send an email to info@chromakey.tv.
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A
Chroma Key Background is used frequently in chromakeying. A Chroma
Key Background is simply an animation played behind your chromakeyed
talent. Chroma Key Backgrounds are great for headshots and medium
shots for interviews. There are a lot of Chroma Key Background libraries
available like Digital Juice,
and virtual sets which take Chroma Key Backgrounds like Virtual
Set Works. Products like these can be great for polishing up an
otherwise boring interview.
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Using a Chroma Key Background for mobile chromakeying
applications is a great solution. You can take a product like the
Chromatte
Chromaflex which is a very portable lightweight
chromakeying solution which, unlike traditional chromakey techniques,
requires very little lighting to use making it perfect for chromakeying
on the go. One would simply take a Chromaflex with them to the interview
and bring back the unkeyed footage and Chromakey a Chroma Key Background
behind the interviewed talent with whatever chromakeyer is being used
in the studio like an Ultimatte or Serious
Magic's Ultra Key.
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