Apple Final Cut Pro 7 - Manual (Page 1412)

5 Move the top handles in the Luma control to select a primary luma range to affect, then
adjust the bottom handles to adjust the tolerance.
Widen the range of luma.
The key color range
is increased.
6 Finally, make similar adjustments to the Saturation control to further increase the range.
You can even include the edges of the yellow shirt.
Widen the range
of saturation.
The key color range
is further increased.
Note: As you work, changes made to one control may change the effectiveness of the
others. For example, a different saturation range may work better if adjustments are also
made to the Luma control.
1412 Chapter 82 Color Correction Examples