Apple MA261Z/A User Manual - Page 816

Example: Using the Chroma Keyer Filter The following example illustrates a typical use of the Chroma Keyer filter. 1 Edit the green screen clip you want to key into the Timeline. If you wish, you can use a superimpose edit to place the green screen clip over a clip you want to use as the background. ∏ Tip: If you edit the clip into track V2 of the Timeline, you'll have room to insert another clip as the new composited background. 2 Apply the Chroma Keyer filter to the green screen clip you just edited in. For more information, see "Applying a Filter to a Clip" on page 664. 3 In the Timeline, double-click the green screen clip to open it in the Viewer; then, in the Viewer, click the Chroma Keyer tab. Note: In this example, you won't use the numeric controls that appear in the Filters tab. 4 Click the Select Color button to pick a color in the clip to key, move the pointer to the Canvas (it turns into an eyedropper), then click the desired key color. Choose a color that's fairly close to the edge of your foreground subject, so that the area near the subject is the first area of color you key out. The color range you select with the eyedropper becomes transparent in the clip. Before clicking with the eyedropper tool After selecting the first key color (not all of the green is keyed out) 816 Part IX Effects