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How to access cameras with opencv

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  • M Offline
    M Offline
    mawriyo
    wrote on last edited by
    #1

    I have a basic script to try and access a camera. I tried using opencvs cv2.VideoCapture() but have tried the devices i see on ls /dev. I get /dev/video0, /dev/video1, /dev/video32, /dev/video33. I also tried to use gstreamer to access these cameras to no result.

    I installed a v4l2-utils to see my devices to which returns when I use '''vl2-ctl --list-devices''' which returns

    "msm_vidc_vdec ():
    /dev/video32
    /dev/video33
    /dev/v4l-subdev2
    /dev/v4l-subdev3
    /dev/v4l-subdev4
    /dev/v4l-subdev5
    /dev/v4l-subdev6
    /dev/v4l-subdev7"

    Any idea how I can use the cameras that come with the kit to be used in basic CV programming?

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    • Chad SweetC Offline
      Chad SweetC Offline
      Chad Sweet
      ModalAI Team
      wrote on last edited by
      #2

      Please see the documentation for voxl-camera-server here: https://docs.modalai.com/voxl-camera-server/

      There are many examples in our SDK code base of how to consume that data. Here is a good place to look for each of our services: https://gitlab.com/voxl-public/voxl-sdk/services

      Here is some exact code here: https://gitlab.com/voxl-public/voxl-sdk/services/voxl-qvio-server/-/blob/master/server/main.cpp#L474

      And another example here: https://gitlab.com/voxl-public/voxl-sdk/services/voxl-tflite-server/-/blob/master/src/main.cpp#L208

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