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Thermal & Optical Bi-spectrum Network Camera User Manual
46
Enable or disable the smart supplement light.
Brightness Limit
Adjust the upper limit of supplement light power.
Note
The function varies according to device models.
9.2.6 BLC
If you focus on an object against strong backlight, the object will be too dark to be seen clearly.
BLC (backlight compensation) compensates light to the object in the front to make it clear. If BLC
mode is set as Custom, you can draw a red rectangle on the live view image as the BLC area.
9.2.7 WDR
The WDR (Wide Dynamic Range) function helps the camera provide clear images in environment
with strong illumination differences.
When there are both very bright and very dark areas simultaneously in the field of view, you can
enable the WDR function and set the level. WDR automatically balances the brightness level of the
whole image and provides clear images with more details.
Note
When WDR is enabled, some other functions may be not supported. Refer to the actual interface
for details.
9.2.8 White Balance
White balance is the white rendition function of the camera. It is used to adjust the color
temperature according to the environment.
9.2.9 DNR
Digital Noise Reduction is used to reduce the image noise and improve the image quality. Normal
and Expert modes are selectable.
Normal
Set the DNR level to control the noise reduction degree. The higher level means stronger
reduction degree.
Expert
Set the DNR level for both space DNR and time DNR to control the noise reduction degree. The
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