Datavideo SE-4000 8-Channel 4K Video Switcher User Manual
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Outlined below are steps to set key tie with the chroma keyer.
1.
First, in the Keyer menu, select the keyer and set it to Chroma. We used Key 1 in this
example.
2.
Open the Chroma menu and select Key 1. Select a foreground image from the Key Source
list (the foreground image is usually a person or an object against a green backdrop).