Ross Opengear UDC-8625A Series, Руководство пользователя, Страница: 97 / 174

UDC-8625A Series User Manual (Iss. 11) Operation • 8–5
sometimes used with Character Generators to cut very precise holes for the Key
Video fill.
7. Adjust the Clip and Gain values of the key using the provided sliders. To reset the
values to the factory default settings, click Make Linear .
8. Adjust the Transparency level of the key using the provided slider.
9. To invert the key, select the Key Invert box.
Masking a Key
The Box Mask uses a simple box shape to mask the key and can be adjusted for size and location,
but cannot be rotated. All key types can be masked. Note that this feature is only available for
Key 2.
For More Information on...
• the Box Mask options in the Key Setup tab, refer to Table 9.21 on page 9-28.
To apply a box mask to Key 2
1. From the Device View , select the Key Setup tab.
2. Set the Box Mask by choosing an option from the Key Type menu.
3. Adjust the position of the mask using the Mask Top Edge , Mask Bottom Edge , Mask
Left Edge , and Mask Right Edge sliders.
Note
— Ross Video strongly recommends leaving the Clip and Gain values at the
default settings to avoid undesirable effects.
Note
— The Key Invert feature reverses the polarity of the Key Alpha. A Key Invert
can be applied to any key type.