title: EmguCV capture frames QueryFrame()
body: <p>I'm using emgu cv 3.0.0 and I would like to capture frames from a USB cam. 
  Unfortunately, I get an error while calling <code>Image&lt;Bgr, Byte&gt; image = capture.QueryFrame();</code>
  It says, I can't convert from <code>Emgu.CV.Mat</code> to <code>Emgu.CV.Image</code>.</p>