View Full Version : [ubuntu] Open Canon CR2 images

September 19th, 2009, 08:55 AM
I have got a lot of CR2 (Canon RAW format) images. But I can't edit or resave them. F-spot can only open one image in a time but can't resave it or even rotate. Is there any RAW-converter for Ubuntu?

September 19th, 2009, 01:57 PM
There are several of them.
dcraw and ufraw are stand alone converters. Gimp-dcraw and gimp-ufraw are plug-ins for gimp.
The KDE program Digikam with the kipi plugins will do raw conversions as well as being good for minor edits, viewing and cataloging. I use this most of the time.
All these are available through your synaptic package manager.

Also, you may want to look at Rawstudio (http://rawstudio.org) and Raw Therapee (http://www.rawtherapee.com), raw image converters and editors. Raw therapee is quite capable with lots of editing options. Both are free but Raw Therapee is not open source if that bothers you.

Hope this helps

September 20th, 2009, 06:28 AM
there are some DNG converters available (http://en.wikipedia.org/wiki/Digital_Negative_%28file_format%29). i have installed one (i am not on my ubuntu computer so i cant tell you the name right now) but i have not tried it out yet. it will convert to dng format which will be editable in GIMP as well as other image editors.

September 20th, 2009, 12:27 PM
Thanks. These programs really helped me.

September 22nd, 2009, 05:47 AM
I tried most of that software with the cr2 files from the Canon t1i, there latest release in the EOS Rebel series. I'm beginning to suspect that there are variations in cr2 files from model to model. Some ot the above programs complete screw up the image, in the rest the colors are horrible. I found a work around and posted it at:


It's a little clumsy but it does work.