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602Final Cut Pro User Guide
3. Select the foreground clip in the timeline, then click the Effects button in the top-right
corner of the timeline (or press Command-5).
4. In the Effects browser, select the Luma Keyer effect.
Tip: Type “keyer” in the Effects browser search field to quickly find the Luma Keyer
effect.
5. Do one of the following:
• Drag the effect to the timeline foreground clip you want to apply the effect to.
• Double-click the effect thumbnail to apply the effect to the selected clip.
The Luma Keyer effect automatically removes the black video. If the resulting key isn’t
right or you want to improve it, you can adjust the luma key effect.
Adjust the luma key effect
1. In the Final Cut Pro timeline, select the clip with the Luma Keyer effect.
2. Open the Video inspector.
The Effects section of the Video inspector shows the parameters available for adjusting
the Luma Keyer effect.
3. To reverse the key and remove white instead of black areas of the foreground clip,
select Invert.
4. To adjust the white and black clip values, drag the handles at either end of the gradient
thumbnail image.
By default, these handles are set to provide a key where the luma level linearly controls
the transparency of the foreground—100% white is fully opaque, 0% black is completely
transparent, and 25% gray retains 25% of the foreground image. Dragging the white
and black controls changes the values that result in fully opaque or fully transparent
foreground video.