How to select camera like drop down button APP designer?

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Jenifer NG
Jenifer NG 2022년 8월 17일
댓글: Jenifer NG 2022년 10월 17일
Hi All,
I am learning to design an app that can select the avaiable camera from computer as fig bellow.
Could you help me or give some guide ?
Thanks !

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Ajay Gajulapally
Ajay Gajulapally 2022년 10월 17일
Please Ensure you have the add-on: MATLAB Support package for USB Webcams" installed before following the procedure.
  1. Create a property cam in the app designer:
properties (Access = private)
cam % Description
end
2. Create a startupFunction for the app which by default opens webcam 1
Include this code in the function.
app.cam = webcam(1);
preview(app.cam);
3. Create a Value Change function for the drop down and update the code:
function CameraDropDownValueChanged(app, event)
delete(app.cam);
value = app.CameraDropDown.Value;
if value == "Cam 1"
app.cam = webcam(1);
else
app.cam = webcam(2);
end
preview(app.cam);
end
4. Now try running the app. Hope this helps!

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