SteGUI is a graphical front-end to Steghide. It lets users view the images and play the sounds that Steghide allows as cover files, and command the program all with one tool. It also embeds a simple text editor to manage text payload files.
Camerad is a daemon to periodically fetch images from IP security cameras via http, store them on the filesystem in an organized manner and keep updated a set of thumbnails.
Shade is a versatile LSB (least significant bit) manipulation and analysis tool used to hide/retrieve files from within other files, such as images. The goal is to make the existence of the hidden file completely undetectable, and optionally encrypted.
Gspy retrieves images from a video4linux device and processes these images looking for significant motion events. Each image of interest is recorded to a daily image directory may be optionally converted to mpeg movies. see http://gspy.sourceforge.net
Motiontrack is a motion detection backend which simply and effective compares 2 images and checks for any objects which have moved. Works even with low quality and high flicker / snowstorm images. Will someday be able to recognize objects.
Fwall is a professional firewall software for Linux (Newt interface). The software has been adopted by private and governmental companies in Brazil. Fwall can be used with clients, servers, and (mainly) gateway machines.
Open Source Stenography engine usable from the command line. Uses various techniques for hiding and retriving stenographic information. Includes a small image analysis suite for detecting stenographic images.