Downstream Keyer Configuration Items; Setting The Downstream Key Type; Setting The Downstream Key Object Transparency; Table 3-3: Top Level Of The Dsk Setup Menu - evertz HD9626DSK Instruction Manual

HD9626DSK Instruction Manual
3.7.

DOWNSTREAM KEYER CONFIGURATION ITEMS

The HD9626DSK Keyers allow you to key objects into the output video. The DSK Setup menu is used
to configure the downstream keyer functions – key type, gain, and thresholds. Table 3-3 shows the
items available in the DSK Setup menu. Sections 3.7.1 to 3.7.4 provide detailed information about
each of the sub-menus.
Key Type
Key Gain
Key Offset
Key Threshold

3.7.1. Setting the Downstream Key Type

DSK
Key Type
Type: input
Type: self

3.7.2. Setting the Downstream Key Object Transparency

DSK
Key Gain
Gain: 100
50 to 170
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Selects whether the DSK will perform a self key or use the supplied key
and fill signals
Adjusts the transparency of the keyed object with respect to the key input
Shifts the base level for the entire range of colour values with respect to
the key input
Sets the level of the signal where the self key will occur

Table 3-3: Top Level of the DSK Setup Menu

This menu item is used to select whether the downstream keyer will use the
key and fill input to perform the keying function or whether it will perform a
self key.
Select input to use the key and fill inputs provided on video inputs 11 and 12
of the HD9626DSK respectively.
Select self to perform a hard self key using the threshold value set in the
Key Threshold menu item.
This menu item is used to modify the opacity (transparency) of the keyed
object used in input key mode.
The Key Gain range of values from 50 to 170 (per thousand). This setting
increases or decreases the entire range of colour with respect to the key
input. This will render the fill as more or less pronounced respectively.
Use the or pushbuttons to change the Key Gain value. The default
Key Gain value of 100 will leave the transparency of the keyed object
unmodified from that defined by the key signal. Lowering the Key Gain
value will reduce the opacity of the keyed object (i.e. make it more
transparent). Increasing the Key Gain value will increase the opacity of the
keyed object (i.e. make it less transparent).
Revision 1.4
OPERATION