Grass Valley Indigo AV Mixer v.1.2.2 - Manual (Page 92)

92 INDIGO AV Mixer User Manual
Section 7 — Menus
Mask Mode
Select one of the following modes:
• Force FGD
Forces the area within the selected and adjusted mask to show the fore-
ground signal.
Use this mode if you experience problems with parts of the picture that
have a similar color like the key (for example, a blue tie of the news-
reader while using a bluescreen).
• Suppress FGD
Suppresses the area within the selected and adjusted mask.
Use this mode if objects accidentally extend into the bluescreen area
(for example, a microphone hanging down) and should be masked
out.
Patterns
Select the desired mask pattern from the Patterns list. This allows you to
adjust the mask approximately to the area to be masked in or out
(depending on Mask Mode).
Invert
Inverts the mask.
The parameter display fields in the lower part of the Parameter Edit Area
allow you to adjust the size and appearance of the mask.
Preview
Shows the modified signal on the Preview output.