USB3.0 Board Level Camera
·
User Manual
48
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.
Table 11-3
Analog Gain Mode and Principle
Gain Mode
Principle
Off
The camera adjusts gain according to the value configured by
user in
Gain
.
Once
Adjust the gain automatically according to the image
brightness. After adjusting, it will switch to
Off
Mode.
Continuous
Adjust the gain continuously according to the image brightness.
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
.
Figure 11-17
Set Gain under Once or Continuous Mode
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.
Summary of Contents for USB3.0
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