Qvis Izeus hdcvi dvr, User Manual

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Contrast This 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.
Saturation This 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.
Gain
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.
White level This is to enhance video effect.
Color mode It includes several modes such as standard, color. You can
select corresponding color mode here, you will seehue,
brightness, and contrast and etc will adjust accordingly.