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6.3.4 HLC/BLC
The highlight Compensation – HLC – function is used to black out highlighted areas that may blind the camera,
in order to enable a clear visual image of objects, such as the license plates of an oncoming vehicle or other
objects that may be obstructed by headlamps.
The Backlight Compensation – BLC – function is used to brighten an image in the foreground with a highly
lit area behind it such as sunlight, limiting the affect of silhouetting.
Please use D-WDR function instead of BLC because BLC function compensates the image very limitedly.
HLC/BLC
Default
Descriptions
HLC
OFF
HLC clips out the highlight area and masks it as a single color.
OFF – Disables HLC function.
AUTO – HLC switches ON/OFF according to the brightness of the overall
image.
ON – Video will be clipped out and masked for the area which exceeds
CLIP LEVEL.
CLIP LEVEL
005
Defines the threshold level for HLC.
Lower value masks more.
SCALE
010
SCALE is the HLC exposure correction.
Higher value increases the brightness but some lens flare may be
increased. If the flare effect is too big, set this parameter lower.
BLC
-
BLC(Back Light Compensation) is disabled when D-WDR is enabled.
When D-WDR is OFF, BLC can be set ON or OFF.
HLC OFF
HLC ON
