title: How to blur an image with win2D?
body: <p>I want to blur this image:</p>
  
  <pre><code>&lt;Image x:Name="pic"  Stretch="Fill" Margin="3,-43,0,-46"/&gt;
  </code></pre>
  
  <p>when this method is called:</p>
  
  <pre class="lang-cs prettyprint-override"><code>private void Button_Click(object sender, RoutedEventArgs e)
  {
      pic.Source=CertainImage;
      //blur this image
  }
  </code></pre>
  
  <p>Should I use GaussianBlurEffect? How to use it?</p>