title: How to create a stronger blur in FabricJS?
body: <p>I am uploading an image onto a canvas using FabricJS and I would like to blur it. Looking at the examples on their <a href="http://fabricjs.com/image-filters/" rel="nofollow">site</a> I can create a light blur. However, I would like to make this blur stronger. Essentially I would like to make this stronger blur and then have text on top. I am thinking I need to adjust the convolution matrix but I am not certain how to go about that.</p>
  
  <p>Any hints?</p>
  
  <p>PS. I would upload a Fiddle but because of canvas and CORS image issue it would not be useful :(</p>