MultiVideo is an image sequence viewer that is targeted to researchers in the image processing field. It features the ability to display several sequences simultaneously in multiple synchronized views, supports many sequence formats, (including formats without compression that are very useful for researchers), displays very long image sequences without loading them in memory, and runs on multiple platforms thanks to the wxWindows library.
GImageView is a GTK+ based image viewer. It supports tabbed browsing, thumbnail table views, directory tree views, drag and drop, reading the thumbnail cache of other famous image viewers, and a flexible user interface. It also support movies using the Xine library and MPlayer, and supports images in compressed archive formats like tar.gz, zip, and lha.
PythonTheater is a multimedia player capable of AVI/ASF/WMV/MPEG-1 and VCD playback. It can make use of the XVideo extension where available to provide fast playback and smooth scaling. It also supports features such as drag and drop from Nautilus, gmc, konqueror, rox, and others.