Sony DVS-9000, Руководство пользователя

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34
Basic Video Processing
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Effect of use with an independent key transition
The key is inserted with an independent key transition as the background
changes with a common transition, providing the following result.
Effect of a background transition and independent key transition
For details of transitions, see Chapter 3 “Signal Selection and Transitions”
(page 137).
Keys
A key is an effect in which a part of the background image is replaced by an
image or superimposed text. The signal determining how the background is cut
out is termed “key source,” and the signal that replaces the cut-out part is
termed “key fill.” The system component responsible for processing a key is
referred to as a keyer.
Each switcher bank has four keyers, each providing the same functionality.
On each switcher bank, you can use the following key types (methods of
processing the key source).
• Luminance key
• Linear key
• Color vector key
• Chroma key
• Wipe pattern key
• Key wipe pattern key
Key modifiers
You can apply borders and other modifiers to the edge of the key image.
Different wipe patterns are applied to
the background and key transitions.
Transition type:
wipe Independent key
transition type:
wipe