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Dual Mode Chroma Keying
Dual Mode CHROMA KEY Menu
When you have selected dual mode, the CHROMA KEY menu appears as
shown below.
In this menu, select item 5 (CH) to select the appropriate chroma key.
Key 1 is identified as channel ("CH") 1, and key 2 is identified as channel 2.
The other items, 1 to 4, are the same as described in the section "Basic
Chroma Key Operations" (page 5-3).
Note, however, the following restrictions.
• In a D1 system, when carrying out dual chroma keying, for the foreground
of key 2 ("channel 2") it is not possible to use one of the input signals to the
CRK INPUT connectors (CH 1 to CH 4) on the rear panel of the processor.
You can only use the signal selected on the key bus.
• In a D2 system, the foreground is common to the two channels (i.e. keys).
The foreground selected for channel 1 (i.e. key 1) is also used for channel 2
(i.e. key 2).
Chroma keyer (channel)
selection
5-16
Chapter 5 Chroma Keying
M/E-1 CHROMA KEY
SETUP
FRGD
KEY ACTIVE
COLOR CANCEL
ADJUST
WINDOW
KEY POS
VIDEO
FRGD CORRECT
CORRECT
MASK
CH
CH1
MODE
DUAL
Example M/E-1 CHROMA KEY menu display (dual mode)
:
KEY MASK
:
1
MASK
:
ON
:OFF
MASK INVERT
:
ON
MASK SOURCE
: BOX
:OFF
:OFF
:OFF
INPUT SELECT
1
2
3
4
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