title: How to define radius for blur with Python Pillow?
body: <p>I'm trying to blur an image with <a href="http://pillow.readthedocs.io" rel="noreferrer">Pillow</a>, using <a href="http://pillow.readthedocs.io/en/3.2.x/reference/ImageFilter.html" rel="noreferrer">the ImageFilter</a> as follows:</p>
  
  <pre><code>from PIL import ImageFilter
  blurred_image = im.filter(ImageFilter.BLUR)
  </code></pre>
  
  <p>This works fine, except that it has a set radius which is way too small for me. I want to blur the image so much that it can be barely recognised anymore. In the docs I see that <a href="http://pillow.readthedocs.io/en/3.2.x/reference/ImageFilter.html#PIL.ImageFilter.GaussianBlur" rel="noreferrer">the radius is set to 2 by default</a>, but I don't really understand how I can set it to a larger value?</p>
  
  <p>Does anybody have any idea how I could increase the blur radius with Pillow? All tips are welcome!</p>