Dahua NVR4108-P User Manual page 238

Please refer to the following sheet for detailed information.
Parameter
Channel
Period
Hue
Brightness
Contrast
Saturation
Gain
White level
Color mode
Auto Iris
Flip
Mirror
Function
Please select a channel from the dropdown list.
It divides one day (24 hours) to two periods. You can set
different hue, brightness, and contrast for different periods.
It is to adjust monitor video brightness and darkness level. The
default value is 50.
The bigger the value is, the large the contrast between the bright
and dark section is and vice versa.
It is to adjust monitor window brightness. The default value is 50.
The larger the number is , the bright the video is. When you
input the value here, the bright section and the dark section of
the video will be adjusted accordingly. You can use this
function when the whole video is too dark or too bright. Please
note the video may become hazy if the value is too high. The
value ranges from 0 to 100.The recommended value ranges
from 40 to 60.
It is to adjust monitor window contrast. The value ranges from 0
to 100. The default value is 50.
The larger the number is, the higher the contrast is. You can use
this function when the whole video bright is OK but the contrast
is not proper. Please note the video may become hazy if the
value is too low. If this value is too high, the dark section may
lack brightness while the bright section may over exposure .The
recommended value ranges from 40 to 60.
It is to adjust monitor window saturation. The value ranges from
0 to 100. The default value is 50.
The larger the number is, the strong the color is. This value has
no effect on the general brightness of the whole video. The
video color may become too strong if the value is too high. For
the grey part of the video, the distortion may occur if the white
balance is not accurate. Please note the video may not be
attractive if the value is too low. The recommended value ranges
from 40 to 60.
The gain adjust is to set the gain value. The smaller the value is,
the low the noise is. But the brightness is also too low in the dark
environments. It can enhance the video brightness if the value is
high. But the video noise may become too clear.
It is to enhance video effect.
It includes several modes such as standard, color. You can
select corresponding color mode here, you can see hue,
brightness, and contrast and etc will adjust accordingly.
It is to enable/disable auto iris function.
It is to switch video up and bottom limit.
This function is disabled by default.
It is to switch video left and right limit.
This function is disabled by default.
226