Vivotek ND9542P 32-Channel 4K UHD NVR (No HDD) - Manual (Page 60)

VIVOTEK - Built with Reliability
60 - User's Manual
2-2-2. Digital zoom Panel
Digital zoom is a function that provides digital zoom into a live video. Be sure you
place your mouse cursor inside the Global view window for the zoom function to take
effect.
When activated, a Global view window will appear at the lower right of the view cell
as shown below. You can display only a portion of the complete video frame as an
area of your interest. Using a click and drag on the ROI window, you can instantly
move to other areas within the video frame. Use the zoom ratio pull bar at the bottom
to change the zoom ratio. You may also move the ROI around by click and drags.
Global view Zoom In Zoom Out
160%
ROI
Shrink/
Expand
Note that not every camera supports the PiP function.