Справочник Пользователя для Barco DCS-200

Using Keys

The following topics are discussed in this section: 

A key is a video effect in which one video source cuts into a background image. The 
DCS-200 enables you to perform a key over any selected source, using either DVI input 7 
or 8 as the key source.  All key transitions are seamless, at the same rate as the full-screen 
source transitions.  

A variety of “key” transitions can be performed:

Mix key up, over the selected source

Mix key down, over the selected source

Mix from a source without a key, to a new source + key

Mix from a source + key to another source without a key

Mix between two sources under a key

Fade to black from a source + key

Fade up from black to a source + key

Before you perform a key transition, ensure that the key source is selected on the Key 
Setup Menu, and that the key’s clip, gain and opacity have been adjusted.  The key must 
be transitioned to Program in order to adjust its parameters.  See the “

section on page 67 for details.  

Please note:

The resolution of the digital key source can be the same, greater than or less than 
the system’s selected output resolution.  

  

KEY

You cannot use an analog input as a key source.  You cannot 
key over the LOGO.

In Preview mode, when you press KEY to “pend” the key 
transition, you will not see the key overlay on the Preview 
monitor.  If you then press TAKE,  the input and key appear 
on Program.

To see the key on the Preview monitor, you can route the 
source from Program to Preview using the Output Src 
selection of the Preview Menu. This selection places a copy 
of the Program image on the Preview monitor, including the 
key. For more information about this function, refer to the 
“

” section on page 51.