Image Magick
The Ubuntu Dapper Brightboxes come pre-installed with Image Magick 6.2 from the official Ubuntu Dapper distribution and have been extensively tested with many Rails applications.
There are known memory leaks when using this library with the rmagick gem. If this is causing you problems, you could try the 6.3 packages with the new rmagick version 2.2 gem, though they are currently in beta.
Image Magick 6.3 beta
We have backported Image Magick 6.3 from Ubuntu Hardy which is currently available for beta testing. You can find installation instructions here.
