Gthumb is an Image browser and viewer for the GNOME Desktop.With
Gthumb you can view single images ( BMP, JPEG, GIF, PNG, TIFF, ICO, XPM - including GIF animations), rotated, flipped, in black and white, and in fullscreen mode. Browse your hard disk with
gthumb to see thumbnails of your image files (saved in the same database used by Nautilus so you don't waste disk space), copy, move,
...Licence : GPL