VIVOTEK
User's Manual - 207
© 2020 VIVOTEK INC. All Right Reserved
66
NAME
VALUE
SECURITY(
get/set)
DESCRIPTION
"piris_mode"=manual or
"irismode"=fixed
* Only available when
"capability_image_c<0~(n-1)>_exposu
re_rangetype" is "twovalues".
maxexposure
<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
Maximum 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" != "-"
* 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-
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
© 2020 VIVOTEK INC. All Right Reserved
67
NAME
VALUE
SECURITY(
get/set)
DESCRIPTION
1)>_exposure_maxrange"
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
the version number (httpversion) is
equal or greater than 0302a.
enablepreview <boolean>
1/4
Usage for UI of exposure settings.
Preview settings of video profile.
* Only available when
"capability_image_c<0~(n-1)>_exposu
re_mode" !=0
meteringmode auto,
blc,
hlc
* Available value is listed
in
"capability_image_c<0~(n-
1)>_exposure_meteringm
ode"
4/4 "
auto
": The algorithm chooses the
best metering strategy.
"
blc
": This metering method increases
the weight of dark area.
"
hlc
": The metering method can
detect strong light and make affected
area clear.
* We support this parameter when
the version number (httpversion) is
equal or greater than 0311a.
crop_position <coordinate>
(x,y)
1/7
Crop left-top corner coordinate.
crop_size
<window size>
(WxH)
1/7
Crop width and height.
(width must be 16x or 32x and height
must be 8x)
zoomratiodispl
ay
<boolean>
1/4
Indicates multiple of zoom in is
“on-screen display” or not.
* We support this parameter when