Grass Valley M-2100 - Manual (Page 55)

MMCP Installation/Operation Manual 2-31
Keyer Controls and Operation
Key Modifier Button Tally Summary
Key Modifier Knobs
Hue, Saturation and Brightness
The key modifier potentiometers Brightness , Hue , and Saturation control the
matte generator parameters in the delegated keyer when the Matte button is
selected (low tally). They also allow you to adjust Border luminance as
described earlier.
Clip/Foreground and Gain/Background
The Clip and Gain potentiometer knobs control the key signal amplitude,
offset, and edge quality for the selected keyer. The Clip knob affects the
offset of the key control signal and the Gain knob affects the amplitude and
the hardness/softness of the edge.
These knobs can also be configured using the Mode selection in the Keyers
section of the Main Sources form in Configuration Manager to behave as fore-
ground and background clip adjustments. In this mode, the Foreground Clip
knob only affects the foreground part of the scene, and the Background Clip
knob only affects the background part of the scene.
These controls are the only ones which apply to the Chroma Keyer.
Recalling and Initializing Key Parameters
Key Recall
Whenever a key is selected, the set of parameters associated with that key
when it was last selected is re-applied.
There is only one set of parameters
associated with each keyer at any given time.
Keyer Defaults
To set keyer defaults:
1. Press and hold the Mode/Function button.
Table 2-4. Key Modifier Tally Summary
Off
No keyer in key modify mode.
A keyer in modify mode, but modifier button not active for that key.
Low A keyer is in modify mode.
Initialize: All modifier buttons to off.