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8
Parameter Description
BackLight Mode
You can select from the following modes:
Disabled: No back light.
BLC: The camera gets clearer image of the dark areas on the
target when shooting against light.
WDR: The system dims bright areas and compensates dark
areas to ensure the clarity of all the area.
HLC: The system constrains bright areas and reduces halo
size to dim the overall brightness.
Light Mode
There are four light modes: NO, NC, Auto, and Scheduled. Select
as needed.
Video Standard
Select from PAL or NTSC according to your display device.
Image
Brightness
Changes the value to adjust the picture brightness. The larger
the value is, the brighter the picture will be, and the smaller the
darker. The picture might be hazy if the value is too large.
Contrast
Changes the contrast of the picture. The larger the value is, the
more the contrast will be between bright and dark areas, and the
smaller the less. If the value is too large, the dark area would be
too dark and bright area easier to get overexposed. The picture
might be hazy if the value is too small.
Hue
Makes the color deeper or lighter. The default value is made by
the light sensor.
Saturation
Makes the color deeper or lighter. The larger the value is, the
deeper the color will be, and the lower the lighter. Saturation
value does not change image brightness.
Gamma
Changes the picture brightness and improves the picture
dynamic range in a non-linear way. The larger the value is, the
brighter the picture will be, and the smaller the darker.
Mirror
Select On, and then the image is displayed with left and right
side reversed.
Flip
Select On, and then the image is displayed upside down.
Audio
Control
Select Enable or Disabled to turn on or off each sound.
Volume
Control
Miccrophone
Volume
Adjust the value, and the larger the value is, the louder the VTO
microphone volume will be.
Beep Volume
Adjust the value, and the larger the value is, the louder the
system volume will be.
Access Control
This section introduces how to configure the lock, including unlock responding interval, open door
command, door sensor check time, first unlock command and door contact type.
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