Dual Masking - Sony DVS-7250 User Manual

Dual Masking

With the enhanced chroma key function, you can use two masks, main and
subsidiary, simultaneously. You can also use these masks simultaneously
with the main mask and subsidiary mask set for the selected keyer (KEY 1 or
KEY 2).
The following procedures are the same in both D1 and D2 systems.
Using the chroma key main mask
In the CHROMA KEY menu, select item 4 (MAIN MASK).
The MAIN MASK menu appears.
MASK TYPE
OFF
4H
F1
The operation of this menu is the same as for the MAIN MASK menu used
for other keys (for example a luminance key). For the remainder of the
operating procedure, see the section "Using the main mask" (page 4-48).
However, if you select F5 (PATTERN) as the mask source, F7 (MASK
INVERT) is disabled, and inversion is not possible.
MASK SOURCE
KEY BKGD
MASK MASK BOX PATTERN
F2 F3 F4 F5
CHROMA KEY MAIN MASK menu
MASK MASK
MODIFY INVERT
OFF
F6 F7 F8
Chapter 5 Chroma Keying
F9 F10
5-33