GraphicsMagick provides a set of commandline tools and programming APIs for manipulating, editing, and converting raster and vector images. It is derived from ImageMagick, with the objective of providing better stability and performance than ImageMagick while retaining the original MIT/X11 license.
gAnim8 is a full suite of tools for building and manipulating animated GIFs & small videos in a Gtk/Gnome environment. Easily create, edit, or preview animated GIFs or videos (MPG, AVI/ASF, WMV, SWF, RM, MOV, M4V), or record videos and take screenshots.