title: Bluring Part of an Image in Android
body: <p>is there any way to blur only part of an image in android?</p>
  
  <p>searched a lot but dint find any help.</p>
  
  <p>most of the examples use gaussian blur which blurs full imageview.</p>
  
  <p>i want to allow user to dynamically draw rectangle on imageview &amp; on action up
  area within rectangle should be blured.</p>
  
  <p>any help will be really appreciated.</p>