Sony DVS-7300, User Manual

Page: 294 / 606

5-34
Chapter 5 Chroma Keying
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.
To use the chroma key main mask
In the CHROMA KEY menu, select item 4 (MAIN MASK).
The MAIN MASK menu appears.
F1 F2 F3 F4 F5 F6 F7 F8 F9 F10
MASK TYPE MASK SOURCE
PATTERN
OFF
BKGD
MASK KEY
MASK OFF
4H
MASK
INVERT BOX
CHROMA KEY MAIN MASK menu
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 4-61).
However, if you select F5 (PATTERN) as the mask source, F7 (MASK
INVERT) is not displayed, and inversion is not possible.
To use the chroma key subsidiary mask
In the CHROMA KEY menu, select item 5 (SUB MASK).
The SUB MASK menu appears.
F1 F2 F3 F4 F5 F6 F7 F8 F9 F10
MASK TYPE MASK SOURCE
UTILITY
BUS WIPE
4H OFF
BKGD
MASK
KEY
MASK OFF
4H
MASK
INVERT
CHROMA KEY SUB MASK menu
The operation of this menu is the same as for the SUB MASK menu used for
other keys (for example a luminance key). For the remainder of the operating
procedure, see the section “Using the subsidiary mask” (page 4-64).
Enhanced Chroma Keying (Single Mode)