When
you extract a key, pixels in other parts of the image may be included.
You can remove these stray pixels from the key to clean it up for
colour grading.
NoteThe following steps
apply to both the HLS and Diamond Keyers.
To remove stray pixels:
View the secondary in the Player. Press F11 to toggle between Matte view
and Secondary view.
Drag the Cleanup slider to the right
to apply a median filter to remove stray pixels.