48
Table 4-2
Description of exposure parameters
Parameter
Description
Mode
Auto: Adjusts the image brightness according to the actual condition
automatically.
Shutter priority: When the exposure range is normal, the system prefers the
configured shutter range when auto adjusting according to the ambient
lighting condition. If the image brightness is not enough and the shutter
value has reached upper or lower limit, the system adjusts gain value
automatically to ensure the image at ideal brightness.
Iris priority: The iris value is set to a fixed value, and the Camera adjusts
shutter value then. If the image brightness is not enough and the shutter
value has reached upper or lower limit, the system adjusts gain value
automatically to ensure the image at ideal brightness.
Manual: Configure gain and shutter value manually to adjust image
brightness.
Anti-flicker
50Hz: When the current is 50Hz, the system adjusts the exposure according
to ambient light automatically to ensure there is no stripe appears.
60Hz: When the current is 60Hz, the system adjusts the exposure according
to ambient light automatically to ensure there is no stripe appears.
Outdoor: You can select any exposure mode as needed.
Iris
Select
Manual
or
Aperture Priority
as the
Mode
. Then you can configure the
iris parameter.
Exposure Comp
Select
Manual,
Aperture Priority
or
Shutter Priority
as the
Mode
. Then you
can configure the exposure compensation parameter.
AE (Auto
Exposure)
Recovery
Set a recovery time. After you adjust the shutter manually, the exposure mode
will be restored to the default one after the time you have set.
In the selection box of
AE Recovery
, you can select
Off
to turn off AE recovery.
Shutter
Set
Manual
or
Shutter Priority
as the
Mode
. Then you can configure the
parameter.
Adjust the camera’s shutter value.
2D NR
Select the
On
check box to enable this function. Aiming at single-frame image,
2D NR averages the pixel points (points that are with image noise) with other
common pixel points to decrease the image noise and achieve an acceptable
and good image display effect. The higher the grade, the better the noise
suppression effect.
3D NR
Select the
On
check box to enable this function. Aiming at multiple-frame
image, 3D NR handles information between two frames to reduce the image
noise. The higher the grade, the better the noise suppression effect.
4.1.1.1.3
Configuring Backlight
Backlight mode is divided into
BLC
,
HLC
and
WDR
. You can select one from the three options above
at one time.
When in BLC mode, the camera gets clearer image of the dark areas on the target when
shooting against light.
