Installation manual

1. GeneralDiamond digital
15
Luminance key/linear key
The key generator enables a luminance key. The signal can be bordered by means
of the borderliner.
It is possible to key on all luminance values (CLIP). The rise time (SOFTNESS) of
the signal can be steepened. The key signal can be inverted (KEY INVERT).
The LINEAR KEY mode allows the use of key and fill signals (on black background)
from external sources, e.g. caption generators. The rise times of the signals cannot
be varied in this case.
The key can be faded into the video signal (MIX), switched (CUT) or faded over by
means of a wipe generator (WIPE). The transparency (OPACITY) of each keyer
can be adjusted separately.
1.6.3 MASK GENERATORS
For restricting the key signal to defined picture areas, a masking generator is pro-
vided for each key generator. Furthermore, the mask signal can be used as a key
signal.
As a standard feature, a square mask is available for each keyer. Alternatively, one
of the wipe generators of the associated mixing level can be used as a mask gener-
ator.
A key/mask store is available, which offers beside storage of key or pattern signals
in conjunction with the wipe generator, a paint mode for generating optional pat-
terns (from DD10).
The effect of the mask on the video signals can be switched over (forced fore-
ground/background) and is invertible.
1.6.4 MATTE GENERATORS, BORDER MATTE GENERATORS
For coloring (fill) characters generated by luminance or linear key, and the
associated borders, a matte generator and a border matte generator are provided
for each keyer.
Beside unicolored mattes, the matte generator allows extremely soft color floating
effects (softness 20-80 %) between two optional colors or black or white in H or V
direction or diagonally. Position and angle of the diagonals can be varied in steps.