You need to determine
which channels (hue, luminance, and saturation) you will use to
extract your key.
To set keying parameters:
- In the Colour menu, click Secondaries.
The Secondaries menu
appears.
- Click the Keyer option box to toggle
to the HLS Keyer.
The HLS Keyer appears
in the Secondaries menu.
- To select the basis of a key, enable
one, two, or all three of the channels. Channel selection depends
what you want to base your key on: chrominance, luminance, or a
combination of both.
- To extract a key based on the hue of
the selected colour range, enable Hue. To exclude hue from a key,
disable Hue.
- To extract a key based on the luminance
of the selected colour range, enable Lum. To exclude luminance from
a key, disable Lum.
- To extract a key based on the saturation
of the selected colour range, enable Sat. To exclude saturation
from a key, disable Sat.
NoteChrominance is comprised
of both the Hue and Saturation channels.
- Enable the Source Primary button to use
primary grading results as the input to the keyer.
NoteWhen Src: Prim is
disabled, the raw scan is used as the input to the keyer, effectively
bypassing any input LUTs and primary grading that has been applied
to your shot.
- Enable the Log to Lin button. See
Tools Settings.
- Adjust the Soften slider. See
Tools Settings.
