User manual
VIVOTEK
User's Manual - 155  
module. Then, act as rbgain mode 
"widerange": Auto Tracing White 
balance (2000K to 10000K). 
"outdoor": auto white balance mode 
specifically for outdoor. 
"indoor": auto white balance mode 
specifically for indoor. 
"sodiumauto": sodium vapor lamps.
* Only available when 
"capability_image_c<n>_wbmode" !=
"-"
rgain  0~100  4/4  Manual set rgain 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. 
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 










