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606Final Cut Pro User Guide
Finalize a key in Final Cut Pro
Quite often your foreground image has objects that you don’t want to appear in the
composited output. These could be production items like microphone booms and light
stands or the edges of the chroma key backdrop. Additionally, you might need to resize
or reposition the foreground object to better fit with the background. As a final step, you
can use the color corrector to adjust the foreground so that it matches the look of the
background.
Final Cut Pro includes effects that you can use for these purposes.
Use a mask effect to remove unwanted parts of the foreground image
1. In the Final Cut Pro timeline, move the playhead to the point in the background clip (the
clip you want to superimpose the chroma key clip over) where you want the key to start.
2. In the browser, select the part of the foreground clip (the chroma key clip) you want to
key over the background, then choose Edit > Connect to Primary Storyline (or press Q).
For details about connecting clips in this way, see Connect clips in Final Cut Pro.
3. Select the foreground clip.
In the above example, the light stands need to be removed.