Set Analog Gain; Set Digital Gain - HikRobot USB3.0 User Manual

is still dark after increasing exposure time and analog gain, at this time, you can increase digital
gain.

11.9.1 Set Analog Gain

The camera supports 3 types of analog gain modes: Off, Once and Continuous. Click Analog
Control, and select Gain Auto according to actual demands. The analog gain mode and principle
are shown below.
Gain Mode
Off
Once
Continuous
When the analog gain is set as Once or Continuous, the gain should be within the range of Auto
Gain Lower Limit and Auto Gain Upper Limit.

11.9.2 Set Digital Gain

Apart from analog gain, the camera supports digital gain function. When analog gain reaching its
upper limit and the image is still too dark, it is recommended to improve image brightness via
digital gain.
Click Analog Control, enable Digital Shift Enable, and enter Digital Shift according to actual
demands. The range of Digital Shift is from -6 dB to 6 dB.
USB3.0 Board Level Camera
Table 11-3 Analog Gain Mode and Principle
Principle
The camera adjusts gain according to the value configured by
user in Gain.
Adjust the gain automatically according to the image
brightness. After adjusting, it will switch to Off Mode.
Adjust the gain continuously according to the image brightness.
Figure 11-17 Set Gain under Once or Continuous Mode
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