Dahua DHI-NVR5208-4KS2 User Manual page 177

Step 4 Click the picture that you want to play back.
The picture with registered information is displayed.
You can also do the following operations to the recorded files.
To back up the recorded files to the external storage device, select files, click

Backup, select the save path and file type, and then click Start. See
To lock the files to make it unable to be overwritten, select the files, and then click

Lock.
To add a mark to the file, select the files and then click Add Mark.

 Go to the Face Properties and Person Details to view detailed information.
4.7.1.2.2
Search by Image
Step 1 Select Main Menu > AI > SMART SEARCH > FACE RECOGNITION > Search by
Image.
The Search by Image interface is displayed. See Figure 4-109.
Figure 4-108
.
Local Basic Operation 166