Command "cam = webcam" not working with MATLAB Support Package for USB Webcam

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Thomas Dutrannois 2018-6-14

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https://ww2.mathworks.cn/matlabcentral/answers/405630-command-cam-webcam-not-working-with-matlab-support-package-for-usb-webcam

评论： smsinks 2020-3-22

I'm trying to use the MATLAB Support Package for USB Webcam. When i run the command "webcamlist" it shows me my webcam: 'HP Wide Vision HD'. But when I try this command : "cam = webcam" it gives me this error in MATLAB:

Warning: The following error was caught while executing 'matlab.webcam.internal.WebcamController' class destructor:
Dot indexing is not supported for variables of this type.
Error in matlab.webcam.internal.WebcamController/delete
Error in matlab.webcam.internal.WebcamController
Error in matlab.webcam.internal.webcamDesktop
Error in webcam (line 95)
                    obj.webcamImpl = matlab.webcam.internal.webcamDesktop(varargin{:}); 
> In matlab.webcam.internal.WebcamController
  In matlab.webcam.internal.webcamDesktop
  In webcam (line 95) 
Error using webcam (line 116)
Error initializing media source.