Gimp should come pre-installed with Ubuntu.  If you don’t have it installed for any reason (uninstalled?), install it using the command :

sudo apt-get install gimp

Next you need UFRaw which is a utility to read and manipulate raw images from digital cameras.  Or in our case, it is better to use the GIMP UFRaw plugin.  Get it by using the command :

sudo apt-get install gimp-ufraw

Now wasn’t that easy?  Now all you need to do is simply right click on any .CR2 file, Select Open With > Open With “Gimp Image Editor” and GIMP UFRaw dialog should appear like below.

UFRaw Dialog

I had to collapse some of the options to make the dialog appear on my small laptop (800 vertical pixel) screen, so if you can’t see the “OK” button don’t fret and resize the window.  There are a few options you can tweak with before you need to click “OK” as shown below.

UFRaw Dialog Options

There’s crop options too… but wonder why the ‘usual’ print aspects aren’t there

More UFRaw Options

And finally, the CR2 raw image makes its way into GIMP for glorious editing… I think I’ll add whiskers and cat’s ears to her face now…

CR2 image opened in GIMP

This post is dedicated to Andy Au!