Sony DVS-7300 User Manual page 303

5
Select the method of combining the stored frame with the input video.
There are four possibilities, involving a non-additive mix (NAM) and a
mask; select the appropriate combination of settings of F6 (NAM) and
F7 (INPUT MASK) as shown in the table below.
Note
When F5 (INPUT SELECT) is set to "MATTE", it is not possible to set
F6 (NAM) to "ON".
F6 (NAM)
F7 (INPUT MASK)
setting setting
OFF ON
ON ON
OFF OFF
ON OFF
For a masking operation, to make the background (i.e. the stored frame)
black, press F3 (MEMORY CLEAR).
If you set F7 (INPUT MASK) to "ON", carry out the following steps 6 to
9. If you selected "OFF", skip to step 10.
6
Use F8 (MASK SOURCE) to select the mask source.
BOX: signal generated by a dedicated box generator
PATTERN: signal generated by a dedicated pattern generator
Combination effect
The input video is masked, and combined with
the stored frame. As mask you can select either
the BOX option or a dedicated pattern.
The input video is masked, and combined in a
non-additive mix with the stored frame. As mask
you can select either the BOX option or a
dedicated pattern.
The input video is written unaltered to frame
memory.
The whole of the input video and the stored
frame are combined in a non-additive mix.
Chapter 6 Frame Memory
(Continued)
6-9