Free jpeg image viewer software for linux

Image Viewer is an image viewer with real-time interactive pan and zoom viewing that uses the GTK+ toolkit and Imlib (or Imlib2).
Image Viewer can open and save to any image format supported by Imlib, rectangular crop, grab the screen, print, and display on the root window.
Main features:
- View
- Convert
- Grab (Screenshot)
- Print
- Rotate
- Crop
- Resize
- Display on Desktop
Enhancements:
- A bug was fixed in the saving of animated GIF images in which looping was not an option.
- The disposal method support for GIF images was improved.

Ekspos is platform independent Java image viewer program. Ekspos Image Viewer support most popular image format: PNG, JPEG, and GIF, where additional image format can be added through Java ImageIO plugin.
It consists of 2 parts: shell browser and viewer. Shell browser allows you to navigate your image collection and youll be able to browse images in tree, detail, list, icon and thumbnail view. The viewer provide progressive view of images with zoom and pan capability.
Main features:
- Image Format (Default): JPEG, PNG, and GIF
- Support ImageIO plugin for additional Image Format
- Support 4 views: detail, list, icon, and thumbnail
- Thumbnail caching for fast preview
- Written entirely in Java

Quick Image Viewer (qiv) is a very small and fast GDK/Imlib image viewer designed to replace the classic image viewers like xv or xloadimage. Quick Image Viewer program runs on FreeBSD, Linux (libc5/glibc), Solaris (SunOS) and HP-UX.
Main features:
- moving & zooming image in fullscreen mode.
- setting image as x11 background (centered,tiled,stretched..) with user settable background color
- fullscreen viewing with a great statusbar
- external "qiv-command" program support
- screensaver mode
- brightness/contrast/gamma correction
- real transparency
- maxpect (zoom to screen size while preserving aspect ratio)
- scale_down (scale down to big images to fit screen size)
- slideshow (with random order if you want)
- filename filer
- flip horizontal/vertical, rotate left/right
- delete function (move to .qiv-trash/)
- jump to image number x, jump forward/backward x images
Enhancements:
- This release has some bugfixes and new options.

Bagel View project is a lightweight image viewer for looking at pXm images. Here pXm means Portable Pixmap (ppm), Portable Bitmap (pbm), and Portable Graymap (pgm) in both RAW and ASCII format. Sample files are included in the samples directory.

Process Viewer is a small utility similar to top which displays all the processes on a linux system. Its written using the FOX Toolkit.

Process Viewer is licensed under the GNU General Public License

KSystem Viewer is a little Kommander bash script what aims see the characteristics of the current system.

KSystem Viewer can see hdd capacity or the name/frequency of the processor.