User manual
VIVOTEK
164 - User's Manual
0: Weak <-> 100: Strong 
* Only available when "rbgain" is listed 
in "capability_image_c<n>_wbmode".
* Only valid when 
"videoin_c<n>_whitebalance" != auto
* Normalized range. 
bgain  0~100  4/4  Manual set bgain value of gain control 
setting. 
0: Weak <-> 100: Strong 
* Only available when "rbgain" is listed 
in "capability_image_c<n>_wbmode".
* Only valid when 
"videoin_c<n>_whitebalance" != auto
* Normalized range. 
exposurelevel  0~12  4/4  Exposure level 
"0,12": This range takes the concept 
from DC's exposure tuning options. 
The definition is: 
0: EV -2.0 
1: EV -1.7 
2: EV -1.3 
3: EV -1.0 
4: EV -0.7 
5: EV -0.3 
6: EV 0 
7: EV +0.3 
8: EV +0.7 
9: EV +1.0 
10: EV +1.3 
11: EV +1.7 
12: EV +2.0 
exposuremode 
<product
dependent>
auto, 
shutterpriority, 
irispriority, 
manual, 
etc 
(Available options are list in 
4/4  Select exposure mode. 
"auto": Iris, Gain and Shutter 
Speed(Exposure time) can be set 
automatically. 
"shutterpriority": Adjust with 
variable Shutter Speed, auto Iris and 










