Webcam cannot be disconnected

After the camera variable is defined and used as below;

camera = webcam;
picture = camera.snapshot;

I use;

clear camera

However deleting the structure of course doesn't disconnect the webcam.

How can I officially stop image acquisition and disconnect the webcam?

Answer 1

[Star Strider]

Try the function version:

clear('camera')

That is in the documentation as step 8 in: Acquire Webcam Images (link).

[Beril Sirmacek]

I tried using clear('camera');

Unfortunately, the webcam light is still on and not possible to disconnect unless I close MatLab.

[Star Strider]

Contact MathWorks. Use the Contact Us link in the upper right corner of this page.

[Beril Sirmacek]

I am contacting to for support. Thank you for your suggestion.

[Star Strider]

My pleasure.

I never experienced that problem, and couldn’t reproduce it when I used my webcam.

[Beril Sirmacek]

I wonder if it is because camera drivers or another setting on pc. Maybe not a MatLab issue at all.

[Star Strider]

I have no idea.

Can you turn it on and off outside of MATLAB? That may be one way of isolating the problem.

[Beril Sirmacek]

Yes, I can turn it on and off with other software which reaches to webcam.

[Star Strider]

Then request help from MathWorks. Use the Contact Us link in the upper right corner of this page.

Run the ver command from your Command Window first. Then copy and paste the results to the appropriate window.