title: YOLO V3 Video Stream Object Detection
body: <p>i'm using YOLOv3 in detecting objects in a live video camera with OpenCV
  but i got this error </p>
  
  <blockquote>
    <p>error: OpenCV(4.2.0) C:\projects\opencv-python\opencv\modules\dnn\src\darknet\darknet_io.cpp:677: error: (-212:Parsing error) Unknown layer type:  in function 'cv::dnn::darknet::ReadDarknetFromCfgStream'</p>
  </blockquote>