How to take a snapshot from webcam using Simulink

I am trying to Take a snapshot from a webcam in Simulink to use as part of a control system. I am currently using the "from Video Device" block. I can get a live video however I only want to take a snapshot (single photo) every 30 seconds.

How is this done?

Answer 1

[Nick Choi]

There is another MATLAB Answers thread that could be helpful for this application: https://www.mathworks.com/matlabcentral/answers/46375-how-can-i-get-a-single-frame-from-a-simulink-live-video-input?s_tid=answers_rc1-3_p3_MLT

Additionally, you could try using an 'Enabled Subsystem' block if you do not want a triggered subsystem. The following documentation link provides additional information on how to use the 'Enabled Subsystem' block:

http://www.mathworks.com/help/simulink/slref/enabledsubsystem.html?s_tid=doc_ta