Image; Coaxial; Utp; Saturation - Dahua XVR User Manual

3.11.1.2 Image

For analog channel, the camera interface is shown as in Figure 3-73. For digital
channel, the camera interface is shown as in Figure 3-74.
 Channel: Select a channel from the dropdown list.
Cable type: It is to set the cable type of the corresponding analog channel. When the

setup here matches the actual cable you are using, you can get the best image effect.
The default setup is COAXIAL. Please note this function is for some series products
only.
 COAXIAL: When the corresponding channel is using coaxial cable, please select

COAXIAL.

 UTP: When the corresponding channel is using UTP cable, please select UTP.
Usually we recommend 10Ohm UTP cable.
 Saturation: It is to adjust monitor window saturation. The value ranges from 0 to 100.
The default value is 50. The larger the number, 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.
 Brightness: It is to adjust monitor window bright. The value ranges from 0 to 100. 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 recommended
value ranges from 40 to 60.
 Contrast: 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.
 Sharpness: The value here is to adjust the edge of the video. The value ranges from 0
to 100. The larger the value is, the clear the edge is and vice versa. Please note there
is noise if the value here is too high. The default value is 50 and the recommended
value ranges from 40 to 60.
 Mirror: It is to switch video up and bottom limit. This function is disabled by default.
Flip: It is to switch video left and right limit. This function is disabled by default.

BLC:It includes several options: BLC/WDR/HLC/OFF.

 BLC: The device auto exposures according to the environments situation so that the
darkest area of the video is cleared
 WDR: For the WDR scene, this function can lower the high bright section and
enhance the brightness of the low bright section. So that you can view these two
sections clearly at the same time. The value ranges from 1 to 100. When you switch
the camera from no-WDR mode to the WDR mode, system may lose several seconds
record video.
73