User manual

4–10 • Advanced Operation CrossOver 6 / 12 User Manual (v1.4)
Modifying Clip and Gain for Unshaped
Auto-Select Keys
If an Auto-Select key is unshaped, you can also
modify clip and gain.
The Clip function adjusts the threshold level of the
key. Only areas of the source video that are higher
than the setting of the threshold cut a hole in the
background video.
Increasing Gain causes the color to become
increasingly saturated.
To modify the clip or gain:
1. Select the key you wish to modify.
2. If necessary, press KEY 1, KEY 2, or KEY 3 to
include the key in the next transition and have it
display on the Preview monitor.
3. Rotate the Clip and Gain knobs until the desired
effect is achieved.
For More Information on...
• selecting keys, refer to the section “Selecting
Keys” on page 3-3.
Converting Between Shaped and Unshaped
Auto-Select Keys
You can convert an unshaped Auto-Select Key to a
shaped Auto-Select Key by using the Make Linear
function. This defaults any modifiers to the selected
key.
To convert an unshaped Auto-Select Key to
shaped:
1. Press MENU.
2. Press NEXT until Make Linear is displayed.
3. Press the Make Linear knob.
Chroma Key Fine Tuning
You can control aspects of the Chroma Key using the
Chroma Key menus. The following effects can be
adjusted:
• Edge
• Shadow
•Gain
•Spill
Chroma key adjustments are persistent and are not
affected by a soft reset or switcher reboot. However,
initializing the Chroma or performing a factory reset
returns all adjustments to default values.
Using the Edge, Shadow, Gain and Spill Effects
The Edge effect controls the sharpness of the key
edge.
The Shadow effect allows you to include or removed
any shadows that are cast on the Chroma Key
background.
The Gain effect controls color saturation. Increasing
the Gain causes the video signal colors to become
increasingly saturated and vivid. Decreasing the
Gain decreases the saturation until the image is black
and white.
The Spill effect allows you to handle chroma key
spill where the background color (the color being
removed) spills onto the key object.
To adjust the Edge, Shadow, Gain, and Spill:
1. Select the key you wish to modify (ensure it is
set as a Chroma key).
2. If you have already assigned a Chroma Key to
one of the other keyers and the Chroma Key
share mode is set to FLOAT or ASK, you are
asked whether you want to steal the Chroma
Key resource to use on the new key. You can
choose from the following:
• Press the Confrm knob to steal the Chroma
Key resource for the new key. The old
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