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Video Composition Operations
Compositing a Still Image with Alpha Channel
Uses alpha channels (areas which contain transparency data) to cut out
still images and place them against dierent background video as a
composite.
Compositing using DSK
1. Press the PANEL [SETUP] button.
2. Touch <DSK>.
The DSK setup screen appears.
3. Touch the setup screen to make the following settings.
Parameter Explanation
MODE ALPHA KEY
DSK SOURCE Species the still image with alpha channel.
4. Touch <DSK SOURCE> to select a DSK video source.
5. Press the DSK [PVW] button to turn on the preview output
(lit).
A preview of the composition results is displayed in the PVW section
of the multi-view.
At this stage, the nal output has not yet been changed.
6. Touch the setup screen to adjust the intensity of the eect.
Parameter Explanation
MIX LEVEL Adjusts the key’s overall density (output level).
TIME
Adjusts the fade-in/out time for the DSK video
source.
* For details on the parameter, refer to “4: PinP/DSK” (p. 123).
7. Press the DSK [PGM] button to turn on DSK compositing (lit).
The composition results is sent to nal output.
8. To turn o DSK compositing, press the DSK [PGM] button
once again.
Turning DSK/PinP composition on/o in tandem
with video transitions
You can make DSK/PinP composition turn on/o in tandem with the
video transitions.
1. After setting “PANEL OPERATION” to “PGM/PST” from the
[MENU] button
Ó
“SYSTEM”
Ó
, set “EFFECTS TRANSITION
SYNC” to “ON”.
2. After step 5, use the [AUTO] and [CUT] buttons to switch the
video.
DSK composition turns on, and the composited result that is
previewed is sent to nal output.
Alpha channel
Background video
Still image
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