Overview
Matte refinement overview Keying is rarely a one-step process. Although adding a keying filter is…

Crop unwanted background areas
using a garbage mask After you apply a key, you may need to crop unwanted…

Restore part of a foreground image
using a holdout mask Sometimes, while pulling a key, you lose part of the image…

Matte Magic filter controls
The Matte Magic filter lets you manipulate the edges of a matte by shrinking, feathering,…

Spill Suppression filter controls
When you key an image that was shot against a blue screen or green screen,…

Apply multiple keys to a single subject
In some instances, it may be difficult to key an entire subject with a single…