Dahua Technology DH-IPC-EBW81242N-AS-S2 12MP Outdoor Network Panoramic Fisheye Camera with Night Vision - Manual (Page 31)

Operation Manual
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Parameter Description
Auto Iris
This configuration is available only when the camera is equipped with
auto-iris lens.
● When auto iris is enabled, the iris size changes automatically
according to the ambient lighting condition, and the image
brightness changes accordingly.
● When auto iris is disabled, the iris stays at full size and does not
change no matter how ambient lighting condition changes.
3D NR
Works with multi-frame (no less than 2 frames) images and reduces
noise by using the frame information between previous and latter
frames.
Level
This configuration is available only when the 3D NR is enabled.
The higher the level is, the better the result will be.
Step 3 Click Apply .
6.2.1.4 Backlight
You can select backlight mode from Auto, BLC, WDR, and HLC.
Step 1
Select > Camera > Image > Backlight .
Figure 6-7 Backlight
Step 2 Configure backlight parameters.
Table 6-4 Description of backlight parameters
Backlight mode Description
BLC
Enable BLC , the camera can get clearer image of the dark areas on the
target when shooting against light. You can enable or disable
Customized mode.
● When you enable Customized mode, the system auto adjusts
exposure only to the set area according to ambient lighting condition
to ensure the image of the set area at ideal brightness.
● When you disable Default mode, the system adjusts exposure
according to ambient lighting condition automatically to ensure the
clarity of the darkest area.