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Win10系统.Windows Subsystem for Linux .Ubuntu 怎么获取到USB摄像头设备,ubuntu中没有找到/dev/video设备 RRS feed

  • 问题

  • [ WARN:0] cv::samples::findFile('data/haarcascades/haarcascade_eye_tree_eyeglasses.xml') => '/mnt/d/opencv/opencv-4.0.1/build/..//data/haarcascades/haarcascade_eye_tree_eyeglasses.xml'                                                       

    [ WARN:0] cv::samples::findFile('data/haarcascades/haarcascade_frontalface_alt.xml') => '/mnt/d/opencv/opencv-4.0.1/build/..//data/haarcascades/haarcascade_frontalface_alt.xml'                                                               

    [ INFO:0] VIDEOIO: Enabled backends(4, sorted by priority): FFMPEG(1000); V4L2(990); CV_IMAGES(980);CV_MJPEG(970)     

    (DEBUG) V4L: opening /dev/video0                                                                                       

    VIDEOIO ERROR: V4L: can't open camera by index 0                                                                       

    Capture from camera #0 didn't work  

    2019年1月18日 12:46