Vision Operator’s Manual (v12.0 MD) Keying • Ops 7–29
Utility Mask
The Utility Mask uses a video source selected on the utility bus as the mask.
Use the following procedure to apply a utility mask to a key:
1. Press the MASK button on the Keyers Module.
2. Press Utility Bus Mask on the Mask Setup Menu.
Mask Setup Menu
3. Toggle Mask on the Pattern Mask Menu to On to apply the mask to the selected
Keyer. The Utility Bus for the MLE is automatically selected.
4. Select the video source on the Utility Bus that you want to use for the mask. Refer to the
section “Selecting a Key or Utility Bus” on page Ops 4-8 for more information on
selecting a Utility Bus.
5. Toggle Force on the Box Mask Menu to On to force the masked area of the image on
screen.
6. Toggle Invert on the Box Mask Menu to On to reverse the mask. The portion of the
image that was masked out is now visible, and the portion that was visible is masked.
This completes the procedure for applying a utility mask to a key.
For More Information...
• on the number of pattern generators available for masks, refer to the section “Pattern
Generators” on page Ops 6-2.
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