Dalsa PC-30-02K80-R Manual page 50

Piranha Color Camera User's Manual
Notes:
Related Commands:
Example
Setting Digital System Gain
Purpose:
Syntax:
Syntax Elements:
Related Commands:
Example:
Setting Add Background
Purpose:
Syntax:
Syntax Elements:
Related Commands:
Example:
DALSA
When subtracting a digital value from the digital video signal the
output can no longer reach its maximum. Use the ssg
command to correct for this where:
ssg value =
max output value ‐ ssb value
See the following section for details on the ssg command.
ssg
ssb 0 800
In 8-bit Camera Link mode: If your scene has a minimum value
of 50 DN and a maximum of 200 DN, then to expand it to 0
DN and 255 DN, set the ssb command to 800 (50 x 16), and
the ssg command to 6990 (4096 / ((200 – 50) x 16)) x 4096).
Improves signal output swing after a background subtract.
When subtracting a digital value from the digital video signal,
using the ssb command, the output can no longer reach its
maximum. Use this command to correct for this where:
ssg value =
max output value ‐ ssb value
ssg t i
t
Tap selection. Allowable range is 1 to 4, or 0 for all taps.
i
Gain setting. The gain ranges are 0 to 65535. The digital
video values are multiplied by this value where:
Digital Gain=
4096
Therefore, the multiplication factor range is 0 to 16.
Use this command in conjunction with the ssb command.
ssb
ssg 1 15
Use the set add background command to ensure a minimum
output value by adding this value to the digital video after
system gain is applied.
sab t i
t
Tap selection. 0 for all taps. Color selection limits the taps
that may be selected. See the scl command for details.
i
Background add values. The range is from 0 to 4095.
ssg, scl
sab 1 25
03-032-10211-03
max output value
max output value
i
50
9/27/2007