Error while using webcam from my laptop
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Rashmi GP
el 29 de En. de 2017
Comentada: Jonathan Gadiel Ramírez Martínez
el 15 de Mayo de 2023
I have installed OS Generic Video Interface Support package to use laptop camera.By running 'webcam' in command window, The camera details in my laptop are displayed with the fol. error:The camera did not return a frame for this resolution.So I am not able to preview camera capturing video nor Matlab is able to detect my webcam.can i know soln for this at the earliest?
1 comentario
Star Strider
el 29 de En. de 2017
Did you install and use the MATLAB Support Package for USB Webcams?
What version of MATLAB are you using?
Respuestas (2)
Prannay Jain
el 7 de Feb. de 2017
OS Generic Video Interface Support package is used for Image Acquisition Toolbox which does not provide 'webcam' command. To use 'webcam' command, install 'MATLAB Support Package for USB Webcams' instead of 'OS Generic Video Interface Support package'.
Refer to the following documentation link to install Webcam support package:
Since you would like to use laptop camera, you can still use 'OS Generic Video Interface' to preview the camera using the following MATLAB code:
>> v = videoinput('winvideo',1);
>> preview(v)
I am assuming you are on Windows machine. If you are on mac, replace 'winvideo' with 'macvideo'.
I hope this will help you in previewing the camera.
1 comentario
Jonathan Gadiel Ramírez Martínez
el 15 de Mayo de 2023
Hello, after using my code successfully, I opened the camera app for other reasons, and then when I wanted to continue using my code I started experiencing the same problem of the post. I have all the packages installed, but something weird is happening. First, it doesn't show me anything and gives me the same warning as in the post. However, after using this code that you provided:
>> v = videoinput('winvideo',1);
>> preview(v)
the camera starts working again. I don't know what the problem is. Can you please help me?
Xinpeng Du
el 30 de Ag. de 2019
I had the same issue. Then I found the reason is because another application is using the webcam. After I turned it off, it works.
2 comentarios
Xinyuan ZHANG
el 26 de Sept. de 2019
This problem confuses me more than one hours. Thanks for your advice and my problem solved.
Jonathan Gadiel Ramírez Martínez
el 15 de Mayo de 2023
How did you found the other application using the webcam?
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