Dahua NVR41 series, Руководство пользователя

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User's Manual
144
Parameter Description
Backlight Mode
You can set camera Backlight mode.
● SSA: In the backlight environment, the system can
automatically adjust image brightness to clearly display the
object.
● BLC:
◇
Default: The device auto exposures according to the
environments situation so that the darkest area of the
video is cleared.
◇
Customize: After select the specified zone, the system can
expose the specific zone so that the zone can reach the
proper brightness.
● WDR: In backlight environment, it can lower the high bright
section and enhance the brightness of the low bright section.
So that you can view these two sections clearly at the same
time.
● HLC: In the backlight environment, it can lower the brightness
of the brightest section and reduce the area of the halo and
lower the brightness of the whole video.
● Stop: It is to disable the BLC function.
WB Mode
You can set camera WB mode. It can affect the image whole hue
so that the image can accurately displays the environment status.
Different cameras supports different WB modes such as auto,
manual ,natural light, outdoor and etc.
Day/Night Mode
Configure the color and black&white mode of the image. This
setting is not affected by the configuration files. The default setting
is Auto.
● Color: The camera outputs color image only.
● Auto: Depends on the camera, such as overall brightness and
whether there is an IR light, either color image or black&white
image is output.
● B/W: The camera outputs Black and white image only.
● Sensor: It is to set when there is peripheral connected IR light.
The Sensor item is for some non-IR device only.
Step 3 Click
Apply
.
4.2.5 Video Overlay
You can set values for overlay and private masking.
4.2.5.1 Overlay
You can add the information of time and channel in the live view interface.