185
Please refer to the following sheet for detailed information.
Item
Note
Period
There are two periods in one day. You can set different
sharpness, brightness, and contrast setup for different periods.
Effective Time
Check the box here to enable this function and then set period
time.
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.
Brightness
It is to adjust monitor window bright. The value ranges from 0 to
100. The default value is 50.
The larger the number, 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, 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, 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 default value may
vary due to different device models. The smaller the value, the
low the noise. 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.
Color mode
It includes several modes such as standard, color, bright,
gentle. Select a color mode, the sharpness, brightness,
contrast and etc can automatically switch to corresponding
setup.
Summary of Contents for nvr4208-8p
Page 1: ...Dahua Network Video Recorder User s Manual V 2 7 0 ...
Page 160: ...145 Figure 3 4 3 5 5 NVR41HS W S2 Series Please refer to Figure 3 5 for connection sample ...
Page 171: ...156 Figure 3 18 3 5 19 NVR78 Series Please refer to Figure 3 19 for connection sample ...
Page 172: ...157 Figure 3 19 3 5 20 NVR78 16P Series Please refer to Figure 3 20 for connection sample ...
Page 173: ...158 Figure 3 20 3 5 21 NVR78 RH Series Please refer to Figure 3 21 for connection sample ...
Page 174: ...159 Figure 3 21 3 5 22 NVR70 Series Please refer to Figure 3 22 for connection sample ...
Page 175: ...160 Figure 3 22 3 5 23 NVR70 R Series Please refer to Figure 3 23 for connection sample ...
Page 176: ...161 Figure 3 23 3 5 24 NVR42V 8P Series Please refer to Figure 3 24 for connection sample ...
Page 177: ...162 Figure 3 24 ...
Page 243: ...228 Figure 4 89 Figure 4 90 ...
Page 244: ...229 Figure 4 91 Figure 4 92 ...
Page 259: ...244 Figure 4 110 Figure 4 111 ...
Page 260: ...245 Figure 4 112 Figure 4 113 ...
Page 261: ...246 Figure 4 114 Figure 4 115 ...
Page 263: ...248 Figure 4 117 Figure 4 118 ...
Page 355: ...340 Figure 5 55 Figure 5 56 ...
Page 356: ...341 Figure 5 57 Figure 5 58 Figure 5 59 ...
Page 367: ...352 Figure 5 73 Figure 5 74 ...
