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Enabling the defog function will increase the contrast of the image. It
is recommended that the defog function is set to OFF during the
normal environment.
3.3.5 Backlight
Backlight is applicable for the backlight or the high luminance
environment; you can set the Backlight to OFF, BLC, WDR and
HSBLC.
Backlight Compensation (BLC)
If there's a strong backlight, the object in front of the backlight will
appear silhouetted or dark. BLC bases on the back area to enhance
the brightness of the whole image, which makes it possible to see
the area before the strong backlight clearly, but the backlight area
will be over-exposed.
HD WDR Box Camera·User Manual
BLC
1. GAIN
2. AREA
3. DEFAULT
4. RETURN
Figure 3-4
26
MIDDLE
RET
BLC
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