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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.
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.
Saturation
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.
White level
It is to enhance video effect.
Auto Iris
It is to enable/disable auto iris function.
Flip
It is to switch video up and bottom limit.
This function is disabled by default.
Mirror
It is to switch video left and right limit.
This function is disabled by default.
BLC
Mode
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.
HLC
After you enabled HLC function, the device can lower the
brightness of the brightest section according to the HLC control
level. It can reduce the area of the halo and lower the brightness
of the whole video.
Off
It is to disable the BLC function. Please note this function is
disabled by default.
Scene mode
(Profile)
It is to set the white balance mode. It has effect on the general
hue of the video. This function is on by default.
You can select the different scene mode such as auto, sunny,
cloudy, home, office, night, disable and etc to adjust the video to
the best quality.
Auto: The auto white balance is on. System can auto
compensate the color temperature to make sure the vide
Summary of Contents for NVR21 Series
Page 1: ...Network Video Recorder User s Manual V 3 5 0...
Page 167: ...155 Figure 5 120...
Page 196: ...184 Figure 7 35 Figure 7 36 Figure 7 37...
Page 210: ...198 Figure 7 60 Figure 7 61...
Page 211: ...199 Figure 7 62 Figure 7 63...
Page 222: ...210 Figure 7 81 Figure 7 82 Please refer to the following sheet for detailed information...
