Tektronix 2200 Manual Do Utilizador

4-79

Frame Store Operations (Option)

Softening a Mask Store Image

Soften the edges of a Mask Store image using the soften function
available in the Mask Store Menu. Press the

SOFTEN

button

repeatedly to obtain the desired softness. Note that you can not
decrease

the softness with the

SOFTEN

button, but you can revert

to the last saved state by pressing the

UNDO

button. So we suggest

you

SAVE

your mask before you start to adjust the edge softness,

and save repeatedly throughout the softening process.

Mask Draw Option

The Mask Draw feature (requiring version 5.2 software and new
Frame Store and Mask Store hardware) allows you to use a
graphics tablet (connected to the switcher Control Panel) to
customize existing masks or to create new ones. Refer to the
Model 2200 or Model 4000 Installation and Service manual for
graphics tablet installation procedure.

Using the

Force Mask

mode, you can add to a key, or using the

Inhibit Mask

mode, you can subtract from a key.

For example, one use of Mask Draw is the ability to draw an
irregularly shaped “garbage mask.” Draw a custom-shaped mask
around an object using Force Mask, and turn “foreground” on.
Use this tool instead of keying the object out.

NOTE:

For the Model 2200, mask draw requires the new Frame Store

module (064814-04). The Mask Draw feature works with the Model
2200 by feeding the mask into the key channel.

For the Model 4000, mask draw requires the new Mask Store Option for
full functionality, or the new Frame Store module for Mask Store using
the key channel.

The text following describes some tips and tricks about using
mask draw. See the Mask Store Menu description in the Operation
Reference manual for additional information on how to select/
manipulate mask draw functions.