The Keyer is a super tool that combines a Screen Degrain, Master Keyer matte generator, Cleanup Alpha tool, Edge tool, Garbage Mask, and a Spill & Blend operator in one tool.
Using the Master Keyer matte generator, you can make parts of an image transparent by selecting and isolating regions of color. This process creates an alpha channel matte, which is then used to composite the image over a new background.
You can create composites by defining transparent regions in a foreground image, based on a specific range of color, to reveal a background image. This keying process is usually performed on footage with a subject in front of a blue or green screen. When you key out a color, you generate a matte: a black and white template indicating which parts of the image are transparent (black), and which are opaque (white). Using techniques, such as softening the edge of mattes, you can refine the results to create realistic composites.
With the Master Keyer matte generator, you can refine the key by gesturally modifying the matte, removing color spill, blending edges, applying patches, and removing grain.
The following are examples of typical uses for the Keyer supertool:
