5BChapter 6: Playback functionality
TruVision NVR 70 User Manual
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To play back frame-by-frame:
1. In playback mode, click the
Single Frame
button in the playback control toolbar. The
speed changes to single frame.
2. Click the
Restore
button return to normal speed.
Digital zoom in playback
You can zoom in on an image during playback to see it in greater detail.
To digitally zoom-in during playback:
1. Click the Digital Zoom button in the playback control toolbar.
2. Left-click the mouse and drag the square of the digital zoom window on the area of interest.
The selected area is magnified.
3. Click the Digital Zoom button again to stop digital zoom and return to normal view.
Capture snapshots
You easily capture a snapshot of a video image for later reference. The image is saved on the
unit in JPEG format.
To capture a snapshot:
1. In playback mode, when you see an image that you want to capture click the snapshot
button
.
Create bookmarks
You can bookmark the important scenes in a recorded file for later reference.
Bookmarks flag the start of a scene. Up to 64 bookmarks can be saved in a video file. There
are two types of bookmarks:
•
Default bookmark
: All default bookmarks have the same generic name, “TAG”.
•
Customized bookmark
: The bookmark is given a name for easy identification. The
same name can be used for several bookmarks.
Bookmarks flag the start and end of a scene. Up to 64 bookmarks can be saved in a video file.
To search for existing bookmarks, see “Search bookmarked recordings” on page 38 for further
information.
