Dahua Video Conference Terminal User
’s Manual
15
Figure 5-4
Step 2
It is to set interface parameter, please refer to sheet 5-3 for more details about the parameter
description.
Parameter
Note
Brightness
It is used to adjust image chroma and show image hue and
saturation. The value range is 0
～
100, and it is 50 by default.
Contrast
It is used to adjust the image contrast. It is 50 by default. The
bigger the value is, the bigger the image bright contrast
becomes; on the contrary, it becomes smaller. Users can
adjust the value when the image total brightness is appropriate
but the image contrast is not enough. When the value is set to
high, the dark part of the image becomes darker and the bright
part is likely to be overexposed. The image becomes blurry
when the value is set to low. The recommended value is
40
～
60, and the range is 0
～
100.
Saturation
The threshold is used to adjust the color darkness and
lightness. It is 50 by default, the bigger the value is, the darker
the color becomes, and on the contrary, it is opposite. The
threshold won
’
t affect the total brightness of the image. When
the value is set too high, image color is too strong and if the
white balance is not correct, which may cause color cast to the
gray part of the image. The image color is not bright enough
when the value is set too low. The recommended value is
40
～
60, the range is 0
～
100.
Sheet 5-3
Step 3
Select
and
to adjust parameter.
Step 4
Select
“OK” to complete image setting.
