Falcon 4M Camera Manual
DALSA 03-032-20044-01
53
Setting Digital System Gain
Purpose:
1) 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
max output value - ssb value
2) Increases/decreases the camera's responsivity by
increasing/decreasing the digital gain.
ssg
levels that create a
digital gain below 1 will result in the camera not reaching 1023
DN.
Syntax:
ssg t i
Syntax Elements:
t
Sensor tap selection. Allowable range is
1
to
2
, 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=
i
4096
For example, to set a digital gain of 1.0,
i
equals 4096.
Notes:
•
Entering a large value gain will cause the camera to digitally
saturate the output image
•
Entering a zero value gain will cause the camera to force the
pixels in the designated tap to be 0 DN
•
Entering a value less than 4096 will cause the camera to not
be able to digitally saturate
Related Commands:
ssb
Example:
ssg 0 5000
