Backlight - Dahua Technology WizSense IPC-HFW3441E-SA Operation Manual

Parameter
Gain
Iris
Auto Iris
2D NR
3D NR
Grade
Step 3 Click Save.

4.5.1.1.4 Backlight

You can select backlight mode from Auto, BLC, WDR, and HLS.
Step 1 Select Setting > Camera > Conditions > Conditions > Backlight.
Step 2 Configure backlight parameters.
Backlight mode
Auto
Description
When selecting Gain Priority or Manual in Mode, you can set shutter
range. With minimum illumination, the camera increases Gain
automatically to get clearer images.
When selecting Aperture Priority in Mode, you can set iris range.
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.
Average single-frame dots and other dots around to reduce noise.
Works with multi-frame (no less than 2 frames) images and reduces
noise by using the frame information between previous and latter
frames.
This configuration is available only when the 3D DNR is enabled.
The higher the DNR level is, the better the result will be.
Figure 4-36 Backlight
Table 4-10 Description of backlight parameters
Description
The system adjusts image brightness according to ambient lighting
condition automatically to ensure image clarity.
47
Operation Manual