For this new release the code has been completely rewritten and NeonView was ported to GTK+ 3. There is a rather big list of changes, some of the most important including a completely redesigned interface, two sidebar panels for thumbnail previews and image information, rewritten code for parsing the config file, redesigned settings window, and a whole bunch of new fixes and improvements.

This release, codenamed ‘Corydoras’, comes with several new features, including two rewritten modules and a graphical configuration window. Here are the most important changes for this version:

RPhoto is an open-source image viewer and editor for Windows and Linux. Its origin resides in the lack of a simple software capable of cropping photos with a constant ratio, to avoid white borders when printing.

RPhoto is lightweight, very fast, and offers basic rotate, resize and crop functions, optimizes JPEG files, has a built-in file explorer and is able to read EXIF data.

The default image viewer for KDE 4, Gwenview, has received quite some love from developers. The interface has change a lot, making it less cluttered, and some new little features have been added. Read on for more information and lots of screenshots.

I'm sure most of (if not all) KDE users are familiar with Gwenview, especially since it became the default image viewer in KDE4. Gwenview is not only a powerful viewer for images, but also a basic image manipulation application, and with version 2.3 it allows even video previews.

Comix is a user-friendly, customizable image viewer. It is specifically designed to handle comic books, but also serves as a generic viewer. It reads images in ZIP, RAR or tar archives (also gzip or bzip2 compressed) as well as plain image files.

An image viewer (also known as image browser) is a desktop application that can quickly display or handle stored graphical images in different graphics file formats. It can render images according to properties of the display such as display resolution, color depth, and color profile. Other image viewers have advanced features like editing and web publishing.

If your desktop hardware includes a graphics processing unit (GPU), you can do some cool image processing with the CVL suite of tools, which includes in image viewer, an image tone mapper, and a command-line tool for non-interactive image processing.

Images are part of our every day Internet usage and a good image viewer is an integral part of a good operating system. Viewnior is one such application for Linux.