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18
Figure 4-8 Backlight mode
Table 4-5 Description of backlight parameters
Parameter Description
BLC
Enable BLC, the camera can get a clearer image of the dark areas on the
target when shooting against light. You can select default mode or
customized mode.
●
When in default mode, the system automatically adjusts exposure
according to ambient lighting conditions to ensure the clarity of the
darkest area.
●
When in customized mode, the system auto adjusts exposure only
to the set area according to ambient lighting conditions to ensure
the image of the set area is at its ideal brightness.
WDR
The system dims bright areas and compensates for dark areas to ensure
the clarity of all areas. The higher the value is, the stronger the darkness
will be, but the more intense the noise will be.
There might be a few seconds of video loss when the device is
switching to WDR mode from other modes.
HLC
Enable HLC when extremely strong light is in the environment (such as a
toll station or parking lot). The Camera dims strong lights, and reduce
the size of Halo zone to lower the brightness of the whole image, so that
the camera can capture human faces or car plate details clearly. The
larger the value is, the more obvious the HLS effect will be.
Step 3 Click
Apply
.
4.3.1.6 White Balance
The white balance function can correct the color deviation to ensure color precision. When in WB
mode, white objects are displayed in a white color depending on the environment.
Step 1 Click on the upper-right corner of the page, and then select
Camera
>
Image
>
WB
.
Step 2 Select the camera that needs to be configured from the
Channel
drop-down list and then
configure
White Balance Mode
.
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