To Set Up Luma/Linear Key On Upstream Keyer 1 On The Broadcast Panel; Upstream Key Luma/Linear Key Parameters - Blackmagicdesign ATEM Production Studio 4K Installation And Operation Manual

To set up a luma/linear key on upstream keyer 1 on the software control panel:
1
Expand the upstream key 1 M/E 1 palette and select luma tab.
2 Select the fill source and key source.
If performing a luma key, select the same source for both fill and key.
Adjust the key parameters to refine the key. For a description of luma key parameters, refer to
the table below.
To set up a luma/linear key on upstream keyer 1 on the broadcast panel:
1 Press the KEY 1 button in the transition control block to enable the keyer on the preview
output. The system control will dynamically navigate to the KEY 1 menu. You can
manually navigate to the KEY 1 menu by pressing HOME > EFFECTS KEYS > KEY 1.
2 Select the LUMA KEY menu button.
3
The destination display on the ATEM 1 M/E Broadcast Panel will say key1fill. Select the
fill source on the select bus.
4 On the ATEM 2 M/E Broadcast Panel, hold down the KEY1/CUT button and select the
key source. On the ATEM 1 M/E Broadcast Panel, hold down the CUT/FILL button so the
destination display says key1 cut and select the key source.
If performing a luma key, select the same source for both fill and key.
5 Adjust the clip and gain controls to refine the key or select 'Pre Multiplied Key' for pre-
multipled keys. The clip and gain are set automatically for pre-multipled keys.
Select sections of the Palette you wish to reset
from the reset menu

Upstream key luma/linear key parameters:

Mask
Pre-Mult
Clip
Gain
Invert Key
Flying Key
Enables a rectangular mask that can then be adjusted using the top,
bottom, left and right parameters.
Identifies the key signal as a pre-multiplied key.
The clip level adjusts the threshold at which the key cuts its hole.
Decreasing the clip level reveals more of the background. If the
background video is completely black then the clip value is too low.
The gain adjustment electronically modifies the angle between on and
off thereby softening the edges of the key. Adjust the gain value until
the edge softness is desirable but the background video luminance or
brightness is not affected.
Inverts the key signal.
Enables/disables DVE effects.
Operating your ATEM Switcher 138 138