Dahua DHI-NVR5432-EI User Manual page 192

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The parameters might vary depending on the camera model.
Parameter
Profile
Brightness
Contrast
Saturation
Sharpness
Gamma
Mirror
Flip
AI SSA
Exposure
Table 5-18 Image parameters
Description
There are three configuration files. The system has configured the
corresponding parameters for each file. You can select according to
your actual situation.
Adjust the image brightness. The bigger the value is, the brighter the
image will become.
Adjust the image contrast. The bigger the value is, the more obvious
the contrast between the light area and dark area will become.
Adjust the color shades. The bigger the value, the lighter the color will
become.
Adjust the sharpness of image edge. The bigger the value is, the more
obvious the image edge is.
Adjust image brightness and enhance the image dynamic display
range. The bigger the value is, the brighter the video is.
Switch the left and right sides of the video image. It is disabled by
default.
This function is available on select models.
Set video display direction. It includes normal, 180°, 90°, and 270°.
After you enable AI SSA (AI Scene Self-adaptation), the camera can
detect environmental conditions, such as rain, fog, backlight, low light
and flicker, to adjust the parameters of the image to suit the conditions,
ensuring that clear images are always produced.
When AI SSA is enabled, some image parameters such as exposure and
backlight mode will become unavailable.
This function is available when the camera is
equipped with the auto iris lens.
After you enable auto iris function, the iris can
automatically zoom in and zoom out according
to the brightness of the environment and the
Auto Iris
image brightness changes accordingly.
If you disable the auto iris function, the iris is at
the biggest value. The iris does not automatically
zoom in or zoom out according to the brightness
of the environment.
This function specially applies to the image whose
frame rate is configured as 2 at least. It reduces the
3D NR
noise by using the information between two frames.
The bigger the value is, the better the effect.
178
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