Datasheet

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Adobe Premiere Pro CS5 What’s New
Ultra keyer
Chroma keying has typically been a tedious, time-consuming processone that Ultra, the
powerful high-performance keyer now included in Adobe Premiere Pro CS5 makes fast and
painless. Normally, when shooting footage to be keyed, you must evenly light the background
screen so it is a single, uniform shade of whatever color you are keying out of the scene. You must
also take care to eliminate color spillreflections of the background screen that “spill” back onto
actors and other objects. When manually adjusting your keys, fine detail around the edges of
objectsfor example, hairneed to be carefully identified so they can be separated from the
background in a believable manner. Using Ultra, you can achieve fast, accurate keying on even the
most challenging DV and HD footage. The GPU-accelerated Mercury Playback Engine dramatically
increases performance, usually resulting in real-time HD keying.
Designed to handle footage shot under real-world conditions that result in uneven lighting,
wrinkled backgrounds, and frizzy hairUltra preserves shadows and can achieve complex keys on
smoke, liquids, and transparent objects. Intuitive, easy-to-use controls make pulling accurate keys
a breeze.
About chroma keying
Chroma keying is the process of
selectively removing (“keying out”)
all of the pixels in an image that are a
particular color (“chroma”) and
replacing them with another image.
Television weather reports use
keying to make meteorologists
appear as if they are standing in front
of a weather map, when they are
actually standing in front of a blue-
or greenscreen.
Ultra, the new keyer in Adobe Premiere Pro, is
optimized to handle real-world greenscreen
conditions. Using simple, intuitive controls,
you can pull a high-quality key quickly.
Parameters can be animated to accommodate
changing conditions.