Vision Operator’s Manual (v12.0 MD) Keying • Ops 7–23
MLE to show a representation of the Alpha (used by the Keyer to mix the key with the underlying
background video) or a color-coded representation of the different UltraChrome regions. The
Preview output show the representation in the foreground of the Preview, but not over top of the
Preview Overlay.
Use the following procedure to display the Alpha or Color Map previews:
1. If the UltraChrome Menu is not displayed, press the CHROMA KEY button the
Keyers Module for the Keyer you are adjusting the chroma key for.
Note — The Color Map and Show Alpha features are mutually exclusive. For example, if you
turn the Color Map feature on, the Show Alpha feature turns off.
2. Turn on the Color Map feature as follows:
• Toggle Color Map on the UltraChrome Menu 2-2 to On to display the Color
Map on the Preview output of the selected MLE. The areas that the colors represent
depend on whether you are performing a Basic or Advanced UltraChrome (Table
7.1).
3. Turn on the Show Alpha feature as follows:
• Toggle Alpha on the UltraChrome Menu 2-2 to On to display the Alpha on the
Preview output of the selected MLE.
This completes the procedure for displaying the Alpha or Color Map previews.
For More Information...
• on setting up your preview monitors to view your key, refer to the section “Video
Preview” on page Ops 4-14.
• on performing transitions, refer to the section “Performing Transitions” on page Ops
5-12.
• on working with Squeeze & Tease MD, refer to the section “Flying Keys” on page Ops
12-10.
• on setting default color or mode for UltraChrome, refer to the section “Personality List”
on page Eng 11-2.
Table 7.1 Color Map Areas Legend
Color Basic Advanced
Red n/a Background and Shadow
Green n/a Translucent
Black Foreground Foreground
Blue Spill Suppression Spill Suppression
Gray Background Transition
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