314
Figure 4-112
This function allows you to be informed when video is blurry, over exposure or color
cast occurs. You can enable alarm output channel and then enable show message
function. Click the Rule Set button, or move the cursor to Set button and then click the
Enter button on the front panel, the interface is shown as below. See Figure 4-113.
You can check corresponding type and then input alarm threshold.
Stripe: The strip occurs when the device is old or there is electronic interference.
There may be cross strip, vertical strip, slanting strip and etc.
Noise: The video noise refers to the blurry video, poor video quality. It may result from
the optical system distortion or the hardware problem during the video transmission
when recording.
Color cast: Usually the video is color containing RGB. When these three colors
displayed in abnormal rate, we can say color cast occurred.
Out of focus: The clear video presents abundant video details. The video definition
decreases when the distortion event occurs. The out of focus event may result from
many sources such as video transmission, processing and etc.
Over exposure: The color brightness refers to the image pixel intensity. Black is the
darkest and the white is the brightest. We use number 0 to stand for black and use
number 255 to stand for white. Once the brightness threshold of the whole image has
exceeded the threshold value, it means the image is over exposure.
Threshold: The value ranges from 1 to 30. System can generate an alarm once the
value is higher than the threshold you set here.
Summary of Contents for HCVR2108C-S2 Series
Page 1: ...Dahua HDCVI Standalone DVR User s Manual Dahua HDCVI Standalone DVR User s Manual V1 8 2 ...
Page 11: ...x APPENDIX F COMPATIBLE WIRELESS MOUSE LIST 479 APPENDIX G EARTHING 480 ...
Page 291: ...278 Figure 4 72 Figure 4 73 ...
Page 322: ...309 Figure 4 105 Figure 4 106 ...
Page 323: ...310 Figure 4 107 Figure 4 108 ...
Page 339: ...326 Figure 4 125 Figure 4 126 ...
Page 340: ...327 Figure 4 127 Figure 4 128 ...
Page 341: ...328 Figure 4 129 Figure 4 130 ...
Page 344: ...331 Figure 4 134 Figure 4 135 ...
Page 351: ...338 Figure 4 145 Figure 4 146 4 11 4 1 2 2Trigger Snapshot ...
Page 353: ...340 Figure 4 148 Figure 4 149 4 11 4 1 2 3Priority ...
Page 384: ...371 Figure 4 188 ...
Page 419: ...406 Figure 5 55 Figure 5 56 ...
Page 432: ...419 Figure 5 71 Figure 5 72 ...
