Dahua Technology VDA-NVR2108W4KS2, Руководство пользователя

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Table of Contents 120
Parameter Description
Contrast
Adjusts the image contrast. The bigger the value is, the more obvious
the contrast between the light area and dark area will become. Adjusts
the contrast according to actual environment.
Saturation
Adjusts the color shades. The bigger the value, the lighter the color
will become. Adjusts the saturation according to actual environment.
Sharpness
Adjusts the sharpness of image edge. The bigger the value is, the
more obvious the image edge is. Adjusts the sharpness according to
actual environment.
Gamma It is to adjust image brightness and enhance the image dynamic
display range. The bigger the value is, the more bright the video is.
Mirror
Enable the function, the left and right side of the video image will be
switched. It is disabled by default.
This function is for some series products only.
Field of view
It is to set monitor video display direction. It includes normal,
reflection, lobby 1, lobby 2.
Exposure
 Auto
iris
 It is for the camera of auto iris only.

After enable auto iris function, the iris can
automatically zoom in/zoom out according to the
brightness of the environment and the image
brightness changes too.
 If disable the auto iris function, the iris does not
automatically zoom in/zoom out according to the
brightness of the environment when the iris is at
the biggest value.

3D NR

This function specially applies to the image which
frame rate is configured as 2 at least. It reduces
the noises by making use of the information
between two frames. The bigger the value is, the
better the effect.