Why MATLAB R2014a can not recognize my usb camera, while my camera works fine with amcap ?

Question

Xiang 2014-4-10

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/125238-why-matlab-r2014a-can-not-recognize-my-usb-camera-while-my-camera-works-fine-with-amcap

回答： Hakan Basargan 2019-11-4

采纳的回答： Friedrich

在 MATLAB Online 中打开

My usb camera works fine with amcap ,but R2014a hardware browser can not see my camera.

The result of imaqhwinfo is below

>> imaqhwinfo

ans =

    InstalledAdaptors: {}
        MATLABVersion: '8.3 (R2014a)'
          ToolboxName: 'Image Acquisition Toolbox'
       ToolboxVersion: '4.7 (R2014a)'

<<

>>

2 个评论
显示无隐藏无

John Porter 2016-4-15

在 MATLAB Online 中打开

I have the same problem, but I have already installed OS Generic Video on my linux computer. When I type in imaqhwinfo I get:

imaqInfo =

    InstalledAdaptors: {'dcam'  'gentl'}
        MATLABVersion: '9.0 (R2016a)'
          ToolboxName: 'Image Acquisition Toolbox'
       ToolboxVersion: '5.0 (R2016a)'

From what I read, it seems like I want linuxvideo but its not there. The camera I'm using is ELP-USB500W02M-L21, and it works fine on a windows computer but not linux.

Any help is greatly appreciated!!

Madhura Suresh 2016-4-18

Hi John,

The 'linuxvideo' (OS Generic Video interface) uses the gstreamer 0.10 system libraries to access the camera. The application "cheese" also uses gstreamer. Can you see you camera when you use cheese? If not, install gstreamer 0.10 libraries, and make sure cheese is working before trying this in MATLAB.

Madhura

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Friedrich 2014-4-10

2
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/125238-why-matlab-r2014a-can-not-recognize-my-usb-camera-while-my-camera-works-fine-with-amcap#answer_132906

编辑：Friedrich 2014-4-10

在 MATLAB Online 中打开

Hi,

look at the line

InstalledAdaptors: {}

You don't have any adaptor installed. Please install at least winvideo and you cam should be detected. In order to install the adaptors run

>>supportPackageInstaller

and follow the instructions (choose the OS Generic Video Interface a.k.a winvideo adaptor later on)

5 个评论
显示 3更早的评论隐藏 3更早的评论

Image Analyst 2014-4-11

Do you have a full version of R2014a (not a student version)? If so, you have the support contract so call them and ask them.

Xiang 2014-4-11

Thank you for your help

请先登录，再进行评论。

Answer 2

Image Analyst 2014-4-10

2
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/125238-why-matlab-r2014a-can-not-recognize-my-usb-camera-while-my-camera-works-fine-with-amcap#answer_132919

R2014a now lets users connect to a web cam through an "Add on" that you can install from the tool ribbon. It does not need or require the Image Acquisition Toolbox. It also seems a bit easier to use than the IATB. Go here for more info: http://www.mathworks.com/support/2014a/matlab/8.3/demos/webcam-support.html