title: resizing a UIImage without loading it entirely into memory?
body: <p>I'm developing an application where a user could potentially try and load very very large images. These images are first displayed as thumbnails in a table view. My original code would crash on large images, so I'm rewriting it to first download the image directly to disk.</p>
  
  <p>Is there a known way to resize an image on disk without entirely loading it into memory via <code>UIImage</code>? I'm currently trying to resize using the categories on <code>UIImage</code> as detailed <a href="http://vocaro.com/trevor/blog/2009/10/12/resize-a-uiimage-the-right-way/">here</a>, but my app crashes on attempting to thumbnail a very large image (like, for example, <a href="http://imgsrc.hubblesite.org/hu/db/images/hs-2003-28-a-full_jpg.jpg">this</a> - warning, huge image).</p>