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6.In the Video Event FX window, click the Eyedropper button (
). The cursor changes to an eyedropper icon.
7.Draw (click and drag) a small rectangular selection area around the color(s) to key out. Although you can select the color range from just about anywhere, the Video Preview window is the best location.
Note: Other effects that can change the color of the event should be bypassed when using the Eyedropper tool.
8.Click the Split Screen View button (
) on the Video Preview window to restore the video effects. The Video Preview window shows the result of the Chroma Keyer
When a subject is
filmed against a solid colored background in a studio, you can key out the background color using the Mask Generator or the Chroma Keyer
This procedure selects a small range of colors to use as a key. In the example above, the blue sky around the dome is far from uniform and it would be difficult to key it out with a traditional blue screen key. The color is uniform enough, however, that a range of blues can be
selected directly from the preview image. Use the controls at the bottom of the dialog box to determine the sensitivity of the colors selected. Since the filter selects a range of colors, it is a good idea to try to select a relatively small range of similar colors. Drawing a color selection area that spans both blue and red colors would make very large sections of an overlay transparent.
Tip: It is possible to use multiple Chroma Keyer
CHP. 14 | USING VIDEO FX, COMPOSITING, AND MASKS |