Dahua DHI-NVR5208-4KS2 User Manual page 129

Parameter Description
Adjusts the image contrast. The bigger the value is, the more obvious
Contrast the contrast between the light area and dark area will become. Adjusts
the contrast according to actual environment.
Adjusts the color shades. The bigger the value, the lighter the color
Saturation
will become. Adjusts the saturation according to actual environment.
Adjusts the sharpness of image edge. The bigger the value is, the
Sharpness 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.
Enable the function, the left and right side of the video image will be
switched. It is disabled by default.
Mirror
This function is for some series products only.
It is to set monitor video display direction. It includes normal,
Field of view
reflection, lobby 1, lobby 2.

Exposure

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
Auto
brightness changes too.
iris
 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.
This function specially applies to the image which

frame rate is configured as 2 at least. It reduces
3D NR the noises by making use of the information
between two frames. The bigger the value is, the
better the effect.
Local Basic Operation 118