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Why do I receive the error "No Image Acquisition adaptors found" for USB cameras using R2014a ?

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Why do I receive the following error when using a USB camera in MATLAB R2014a ?
No Image Acquisition adaptors found. Image acquisition adaptors may be available as downloadable support packages. Open Support Package Installer to install additional vendors.

Accepted Answer

MathWorks Support Team
MathWorks Support Team on 12 Aug 2020
Edited: MathWorks Support Team on 12 Aug 2020
This is because, the winvideo adaptor is not installed by default in MATLAB R2014a. Starting with version R2014a, each adaptor is available separately through the Support Package Installer. To open the Support Package Installer, type supportPackageInstaller in MATLAB. Then on the Select support package to install screen, select your adaptor as OS Generic Video Interface, from the list and proceed to next steps.
After successful install, verify the installation by executing
>> imaqhwinfo
The output should have 'winvideo(example)' as InstalledAdaptor.
Please find the documentation here on how to install the adaptor.

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Roshan Pandey
Roshan Pandey on 9 Jun 2018
even after installing winvideo adaptor i am getting following error.
Could not connect to image acquisition device. No device is available at the specified DEVICEID. See IMAQHWINFO(ADAPTORNAME).
Julia Antoniou
Julia Antoniou on 5 Jul 2018
Hi Roshan,
Sorry for the delayed reply. I would recommend contacting MathWorks Technical Support directly about this error message. You can contact them here:
https://www.mathworks.com/support/contact_us.html

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