title: How to create a good "sketch" effect with actionscript?
body: <p><img src="https://i.stack.imgur.com/PY1Zu.png" alt="enter image description here"></p>
  
  <p>I've been able to get a sketch effect (sort of) using a pixel bender shader available here: <a href="http://goo.gl/xH8QI" rel="nofollow noreferrer">Adobe Pixel Bender</a>. Sample photo right-below (the one with creepy eyes). </p>
  
  <p>The right-top image was created with Balsamiq mockups and is pretty good example of photo-to-sketch effect. So how do I create something like this? Any link or source code is appreciated. </p>