4 making a chroma key, Making a chroma key – Grass Valley Indigo AV Mixer v.1.2.2 User Manual
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INDIGO AV Mixer
User Manual
Section 5 — Basic Operation
5.3.4 Making a Chroma Key
This type of transition inserts one video signal in place of areas of a partic-
ular color of another video signal. The background remains unaffected.
Note
The following example uses Key 1 in SD mode, but you can also use Key 2
and/or HiRes mode.
To make a chroma key:
1.
Select
Key 1 [NEXT TRANSITION]
.
If
Auto Menu Delegation
is unlocked, the
KEYER
menu is selected automat-
ically.
Key 1
[BUS DELEGATION]
is selected automatically.
2.
Make sure
Key 1
[BUS DELEGATION]
is selected.
3.
Make sure
KEYER
main menu is selected.
4.
Select the
SD KEY 1
submenu and press
Type
.
5.
Select
Chroma
as key type.
6.
Press the
Source
button to select key and fill sources.
7.
Press the
Adjust
button.
8.
Press the
Auto
button.
This adjusts the Chroma and Selectivity values automatically.
– or –
Press the
Cursor
button.
Adjust the Cursors position and size with the Joystick to set the color
values used for the chroma key.
Note
Auto and Cursor buttons are not available in HiRes mode.
9.
If required, adjust the Chroma and Selectivity values manually.
10.
Press the
Cut [KEY 1]
or
Mix [KEY 1]
button.
– or –
Press the
CUT
or
AUTO
button.
– or –
Move the
Transition Lever Arm
to the opposite position.