title: Crop image in windows phone 8
body: <p>I try to crop image in windows phone 8 App. 
  I use following namespace</p>
  
  <pre><code>xmlns:y="clr-namespace:System.Windows.Media.Imaging;assembly=Microsoft.Phone"
  </code></pre>
  
  <p>And write content panel like this.</p>
  
  <pre><code>        &lt;!--ContentPanel - place additional content here--&gt;
          &lt;Grid x:Name="ContentPanel" Grid.Row="1" Margin="12,0,12,0"&gt;
              &lt;Image HorizontalAlignment="Left" Height="200" Margin="97,153,0,0" VerticalAlignment="Top" Width="200"&gt;
                  &lt;Image.Source&gt;
                      &lt;y:CroppedBitmap 
           SourceRect="30 0 75 50"&gt;
                          &lt;y:CroppedBitmap.Source&gt;
                              &lt;BitmapImage UriSource="/Assets/image.jpg"/&gt;
                          &lt;/y:CroppedBitmap.Source&gt;
                      &lt;/y:CroppedBitmap&gt;
                  &lt;/Image.Source&gt;
              &lt;/Image&gt;
  
  
          &lt;/Grid&gt;
  </code></pre>
  
  <p>Error is occurred.</p>
  
  <pre><code>error : The tag 'CroppedBitmap' does not exist in XML namespace 'clr-namespace:System.Windows.Media.Imaging;assembly=Microsoft.Phone'. 
  </code></pre>
  
  <p>If anyone can solve this or do this using another way. please help me. </p>