title: vb.net - draw rectangle filled with white noise on a image
body: <p>I use following code to draw a rectangle on a image:</p>
  <pre><code> Dim gr As Graphics = Graphics.FromImage(augImage)
   Dim rect As New Rectangle(xposLabel, yposLabel, w, h)
   gr.FillRectangle(Brushes.White, rect)
  </code></pre>
  <p>now, I would need this rectangle to be filled with white noise. How can this be done?</p>