User Manual

VIVOTEK
User's Manual - 213
© 2019 VIVOTEK INC. All Right Reserved
78
NAME
VALUE
SECURITY
(get/set)
DESCRIPTION
* Available value is listed
in
"capability_image_c<0~(n-
1)>_exposure_maxrange"
etc.
* This parameter may also restrict
image frame rate from sensor due to
sensor generates a frame per
exposure time. Ex: If this is set to 1/5s
~ 1/8000s and camera takes 1/5s on
the night, then sensor only outputs 5
frame/s.
* Only available when
"capability_image_c<0~(n-1)>_exposu
re_maxrange" != "-"
* Only valid when
"piris_mode"=manual or
"irismode"=fixed
* Only available when
"capability_image_c<0~(n-1)>_exposu
re_rangetype" is "twovalues".
shuttervalue
<product
dependent>
<1~32000>,
<5~32000>,
<1~8000>,
<5~8000>,
etc.
* Available value is listed
in
"capability_image_c<0~(n-
1)>_exposure_maxrange"
4/4
Exposure time
1~32000 => 1s ~ 1/32000s
5~32000 => 1/5s ~ 1/32000s
1~8000 => 1s ~ 1/8000s
5~8000 => 1/5s ~ 1/8000s
etc.
* This parameter may also restrict
image frame rate from sensor due to
sensor generates a frame per
exposure time. Ex: If this is set to 1/5s
~ 1/8000s and camera takes 1/5s on
the night, then sensor only outputs 5
frame/s.
* Only available when
"capability_image_c<0~(n-1)>_exposu
re_maxrange" != "-" and
"capability_image_c<0~(n-1)>_exposu
re_rangetype" is "onevalue".
* We support this parameter when
© 2019 VIVOTEK INC. All Right Reserved
79
NAME VALUE SECURITY
(get/set)
DESCRIPTION
the version number (httpversion) is
equal or greater than 0302a.
enableblc
<Not support
anymore>
<boolean> 4/4 Enable backlight compensation.
* Not support this parameter
anymore when the version number
(httpversion) is equal or greater than
0301a.
* It's recommanded to use
"exposurewin_c<n>_mode" to switch
on/off BLC.
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
*Only available when
"capability_image_c0_exposure_mod
e" != 0
exposuremode
<product
dependent>
auto,
shutterpriority,
irispriority,
qualitypriority,
manual,
etc
4/4 Select exposure mode.
"auto": Automatically adjust the Iris,
Gain and Shutter Speed to fit the
exposure level.
"shutterpriority": Manually adjust
with variable Shutter Speed, and keep