Sony DVS-7250, Операционное программное обеспечение

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Chapter 5 Chroma Keying
Enhanced Chroma Keying (Single Mode)
2
Press F2 (TYPE), to select “CLEAN.” If you select “RGB”, then as
when the BKDS-2032 board is not installed (standard chroma keying),
after selecting chroma key as the key type on the M/E bank, the
combination is carried out by a key transition.
For details of the operation when you select “RGB”, see the section
“Basic Operations” (page 5-5).
3
Press F3 (FRGD/BKGD) to select “FRGD”.
4
Press one of F4 (1) to F7 (4) to select the foreground signal.
In a D1 system, you can select F8 (KEY BUS). In this case, select
“CHR” as the key type for the same keyer as the key bus on which the
foreground is selected. (For example, when the foreground is selected on
the key 1 bus, set the key type for keyer 1 to be “CHR”.)
Again, if F9 (FRGD FORMAT) is set to 4:2:2, although the combination
will be performed with a clean chroma key, the combined image quality
will be the same as an RGB chroma key.
5
Press F3 (FRGD/BKGD) to select “BKGD”.
6
Press one of F4 (1) to F7 (4) to select the background signal.
Note
The background signals are common to M/E-1 and M/E-2. Whichever
M/E bank you select the background on, the same background will also
be used on the M/E bank.
7
On background bus A, select the cross-point button to which the clean
chroma key output such as “M/E-1 CHR KEY FRGD” is allocated.
An image formed by clean chroma key combination appears on the
monitor.
Notes
• Since clean chroma key combination does not use an M/E bank, it is not
possible to use the modifiers for the selected keyer (KEY1 or KEY2).
• When using clean chroma key, setting the key type to “CHR” and the key to
“ON” the whole of the image formed by chroma key combination becomes
an overall key for the background.
Again, in this state, using the key modifiers results in overall modification
of the chroma key image.