title: How to display a Video stream from Camera on Raspberry pi with Win iot with some image processing
body: <ol>
  <li>I am trying to build a webcam based face detector using Raspberry pi as the base and Win 10 IOT as the OS </li>
  <li>the image i'm trying to capture will come from a webcam having its own API</li>
  <li>OpenCV is required for me to detect the object as any Haar classifier can be used </li>
  <li>I am not able to port my Console appln onto the ARM base </li>
  <li>Xaml required for the Universal Windows APP does not support the video capture as an output type im using the Image constructor
  NEW POINT </li>
  <li>When using Videocapture with our code , when writing the image to mat type , weather we used cap>>MAt or cap.retrive(mat,0) wew got the same exception error 
  this->_M_dispatcher._Ptr  was a nullptr .</li>
  </ol>
  
  <p>help with any of these points is appreciated </p>