NED
UME-0041-01 XCM20125GIG
35
4.4
Setting Gain
The camera can adjust the analog gain (x1 to x20 in 7 steps) and the digital
gain(x1 to x2 in 512 steps).
Figure 4-4-1
Gain (Analog, digital) (Image from GigEGrab)
As the diagram below indicates, increasing the gain setting increases the slope of
the camera
’s response curve and results in a higher camera output for a given
amount of light.
Figure 4-4-2 Gain Adjustment
Ｆ
s
：Saturation Output(DN)
Ｓｅ：Saturation Exposure(DN)
Se
Volume of Light（lx・s）
Output data(DN)
Ｄ
f
：Dark Current(DN)
Fs
Dｆ
0
Minus gain
Plus gain
