Dahua IPC-HDW1439V-A-IL - Page 67

When the ambient light turns darker, the system turns on the low beam lights rst,
if the brightness is still not enough, it turns on the high beam lights then.
When the ambient light turns brighter, the system dims high beam lights until they
are o, and then the low beam lights.
When the focus reaches certain wide angle, the system will not turn on high beam
light in order to avoid over-exposure in short distance. In the meantime, you can
congure light compensation manually to ne-tune IR light intensity.
●
O : Illuminator is o.
Step 4 (Optional) Congure Illumination Overexposure Remover.
Only some ll light modes support this function.
Step 5 Click Save.
4.5.1.1.9 Defog
The image quality is compromised in foggy or hazy environment, and defog can be used to
improve image clarity.
Procedure
Step 1 Select Setting > Camera > Conditions > Conditions > Defog.
Figure 4-43 Defog
Step 2 Congure defog parameters.
Table 4-14 Description of defog parameters
Defog
Description
Manual
Congure function intensity and atmospheric light mode manually, and
then the system adjusts image clarity accordingly. Atmospheric light mode
can be adjusted automatically or manually.
Auto The system adjusts image clarity according to the actual condition.
O Defog function is disabled.
Step 3 Click Save.
Operation Manual
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