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SimpleCV Errors: VIDIOC_QUERYMENU_Invalid argument and Select Timeout

asked 2013-02-01 00:26:47 -0500

danm_daniel gravatar image

updated 2013-02-01 00:28:22 -0500

I see a lot of people have this same question, but there doesn't seem to be a sound solution. Following advice from the "VIDIOC_QUERYMENU: Invalid argument and Select Timeout with SimpleCV" thread, I tried 2 different cameras that are RPi verified peripherals, and both return this same error.

To recap, I'm running Raspbian Wheezy on Raspberry Pi, have a webcam (powered by hub) and working with simple viewer (I know the computer recognizes the cam because its ID is returned after lsusb command). When I execute the following commands, the error occurs.

  • $ python
  • >>>import SimpleCV
  • >>> from SimpleCV import Camera
  • >>> cam=Camera()

I tried arguments -1 and 0 for Camera function as well. After heavy googling, I can't seem to find any solutions.

Aside from any solutions (which would be much appreciated), has anybody actually got SimpleCV working with a webcam on the Raspberry Pi Rev B??

PS in case this helps, I'm following instructions straight from the "Getting Started with Raspberry Pi" which installs SimpleCV with the following commands:

  • $sudo apt-get update
  • $sudo apt-get install python-opencv python-scipy python-numpy python-pip
  • $sudo pip install https://github DOT com/ingenuitas/SimpleCV/zipball/master

    • reason for DOT in URL is because my "karma" on this site is "insufficient to post links"
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PS I tried $ sudo python as well

danm_daniel gravatar imagedanm_daniel ( 2013-02-01 00:33:30 -0500 )edit

4 Answers

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answered 2013-02-06 19:53:09 -0500

xamox gravatar image

I know it's kind of annoying but it still works fine. I've gotten so use the warning that I don't even notice it anymore. I would do what kscottz suggest and just try getting an image off it. Here is a direct copy and paste of me doing it on my system.

SimpleCV:1> c = Camera()
VIDIOC_QUERYMENU: Invalid argument
VIDIOC_QUERYMENU: Invalid argument
VIDIOC_QUERYMENU: Invalid argument
VIDIOC_QUERYMENU: Invalid argument
VIDIOC_QUERYMENU: Invalid argument
VIDIOC_QUERYMENU: Invalid argument
VIDIOC_QUERYMENU: Invalid argument

SimpleCV:2> i = c.getImage()

SimpleCV:3> i
SimpleCV:3: <SimpleCV.Image Object size:(640, 480), filename: (None), at memory location: (0x36257a0)>

SimpleCV:4> i.show()
SimpleCV:4: <SimpleCV.Display Object resolution:((640, 480)), Image Resolution: (640, 480) at memory location: (0x3623e18)>
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answered 2013-02-03 12:19:42 -0500

kscottz gravatar image

This is just off the top of my head, but I know on Ubuntu the camera will throw that message but SimpleCV grabs the camera instance just fine. Does a call to cam.getImage() fail and if so what message does it return? What kind of camera are you using? I think we had an intern get SimpleCV running on a RaspberryPi I will ping him and see if he knows.

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Any luck on this one. Same problem here but no image. Camera is fine with other software on the Pi.

Kevcook gravatar imageKevcook ( 2013-06-06 05:27:12 -0500 )edit
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answered 2013-06-06 05:28:45 -0500

I also get the /bin/sh: 1: lsof: not found error as well.

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answered 2013-04-05 13:39:56 -0500

MhAckNI gravatar image

@kscottz: The same error message appears while using the Fedora OS as well.

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Asked: 2013-02-01 00:26:47 -0500

Seen: 4,223 times

Last updated: Jun 06 '13