Cannot detect external Webcam in Matlab - Pls Help me

5 次查看(过去 30 天)
Hello,
I have installed iball face2face C12.0 Webcam on my laptop. I Use a Dell laptop - Windows 7 OS.
When i type in the imaqhwinfo command i can see 'winvideo', which is supposedly the Integrated Laptop Webcam. I have successfully installed the External webcam and it worked when i used AMCap.exe it's the software i got with the cam.
I tried imaqreset but it did not work. I tried restarting my system but to no avail!!
I request u to help me plss!
Kishan
  2 个评论
Walter Roberson
Walter Roberson 2011-3-9
Could you post a link to the manufacturer's technical information about that webcam ? I am finding a lot of shopping sites, but not technical specifications.
Jiro Doke
Jiro Doke 2011-3-10
What do you get if you type:
imaqhwinfo('winvideo')
What does the field "DeviceIDs" say?

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回答(2 个)

Ketan
Ketan 2011-3-24
i have similar problem
imaqhwinfo('winvideo')
ans =
AdaptorDllName: [1x81 char]
AdaptorDllVersion: '4.0 (R2010b)'
AdaptorName: 'winvideo'
DeviceIDs: {1x0 cell}
DeviceInfo: [1x0 struct]
this is the response i get from the matlab
imaqhwinfo
ans =
InstalledAdaptors: {'coreco' 'matrox' 'winvideo'}
MATLABVersion: '7.11 (R2010b)'
ToolboxName: 'Image Acquisition Toolbox'
ToolboxVersion: '4.0 (R2010b)'

Mark Jones
Mark Jones 2011-3-28
Hi,
I would encourage both of you to contact the MathWorks Technical Support department. http://www.mathworks.com/support/contact_us/index.html
Not all cameras that work with AMCAP are usable from within the Image Acquisition Toolbox and they can help you determine if this is the case with your cameras.
Mark

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