Grass Valley DD35 Family v.3.1.5 User Manual
Page 74
2. Panel Operation
DD35 Production Switcher
2 – 40
Operating Instructions – Rev. 16 / 10.2001
2.7.6
AUTOMATIC KEY ADJUSTMENT
1
Keyers
Bord
on
Cursor
Auto
FGD
Chr
Sel
Key
over
Key
inv
Mask
on
Mask
Key
Key
PVW
Matte
Key
Bus
Split
Memo
Key
Bus
Coupl
Split
Key
Fill
Add
Lin–
Lum
–Lin
Chr
Key
Pattn
1
Pattn
2
Source
Type
Cut
Auto
BGD B
Key 3
BGD A
Key
1
Key
2
Fade
D E N S
C L E A
O P A C
OnAir
Auto
The Auto button serves to start various automatic functions in the different key mo-
des.
D
In Add Key, the key control is switched to 1:1 transfer so that key signals e.g.
from the caption generator are effective without change.
D
In Luminance Key, clip and gain are adjusted so that the key source signal is
amplified to become a full-range signal with minimum of 0% and maximum of
100%.
D
In Linear Key clip and gain are set to unity.
D
In Chroma Key, the Auto button starts an automatic key adjustment to Blue.
The picture evaluation includes all those colors which are within a certain angle
range around the primary color Blue. Within this range, blue with the highest
intensity is detected as key color. Key color and selectivity are thus adjusted.
In any mode, the opacity and border opacity are reset to 100%.
Note:
After all automatic key adjustments, the corresponding parameters
may still be changed manually.