Can I use UIAxes to stream live video from a camera and how?

I am using R2017b App designer to develop an image acquisition program.

Anybody can tell me can I do it through the UIAxes component and how to do it? Or is there other way to make it happen with the App designer?

Thanks in advance!

[Jan]

Can you do what by an UIAxes? "Develop an image acquisition program" does not explain any details.

[Huayan Wang]

Hi Jan,

Thanks for the quick reply.

I want to stream live video from a camera through the UIAxes component.

I used to do it with command preview(vidobj, himage) I tried preview(vidobj, app.UIAxes) in the app designer. But it didn't work. I want to know how to make the UIAxes stream live video from my camera.

Thank you!

Answer 1

[Prajith Chilummula]

Please checkout the code snippet and inform whether it works.

vidobj = videoinput('winvideo');
triggerconfig(vidobj, 'manual');
start(vidobj)
while(vidobj.FramesAcquired <= 200)
    snapshot = getsnapshot(vidobj);
    imshow(mov,'Parent',app.UIAxes);
    drawnow limitrate
end
stop(vidobj)

[Ahmer Shahid]

I use this code It runs very slowly not like a live streaming and also when I close the GUI the camera is still open. Kindly help me to resolve this problem Thanks.