ShowImg is a feature-rich image viewer for KDE including an image
management system. It is highly configurable and supports numerous
image formats.

Viewer
 * display JPEG, PNG (alpha layer supported), GIF, XCF, PSD, etc. files
 * open several directories, and archives (.tar.gz, .tar.bz2, .zip, ...)
 * apply filters to displayed image
 * preview, fullscreen, slideshow, ``fit-to-screen'', efficient zoom
 * open files with external programs
 * support EXIF header (JPEG file metadata)
 * display a hexadecimal view

Management
 * batch rename
 * search for exact and similar images
 * several formats conversion
 * manage photo albums

Configuration
 * digikam ; plugins supported
 * configurable interface