6.2 Auxiliary Functions of Playback
6.2.8 Playing Back Frame by Frame
Purpose:
Play video files frame by frame, in order to check image details of the video when abnormal events happen.
Steps:
•
Using a Mouse
Go to Playback interface and click button
playback screen represents playback or adverse playback of one frame. It is also feasible to use button
in toolbar.
•
Using the front panel (Not supported by DS-7100-SH and DS-7200HGHI-SH)
Press the
button to set the speed to Single frame. One click on the playback screen or press
on the front panel represents playback or adverse playback of one frame.
6.2.9 Digital Zoom
Steps:
1. Click the
button on the playback control bar to enter Digital Zoom interface.
2. Use the mouse to draw a red rectangle and the image within it will be enlarged up to 16 times.
3. Right-click the image to exit the digital zoom interface.
6.2.10 Reverse Playback of Multi-channel
Purpose:
You can play back record files of multi-channel reversely. Up to 16-ch simultaneous reverse playback is
Digital Video Recorder User Manual
until the speed changes to Single frame. One click on the
Figure 6. 18 Draw Area for Digital Zoom
110
button