Keying makes it easy to replace a background of a consistent color or brightness with another image, which is especially useful when working with objects that are too complex to mask easily. When you key out a value, all pixels that have similar colors or luminance values become transparent. Keying is defining transparency by a particular color value (with a color key or chroma key) or brightness value (with a luminance key) in an image. Then you'll add a title to the promo, and place a station ID into the composition to complete the project. You'll learn how to use keying effects to remove the green background and clean up the edge of the key to remove any lingering green spill. You'll begin by working with live-action footage of an actor captured on a greenscreen stage. In this exercise, you'll build a promotional spot for a weekly news segment on a fictional television station.
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May 2023
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