Shotcut is a free, open source, cross-platform video editor.
Camera recorder
Easy-OCR solution and Tesseract trainer for GNU/Linux
Web based live video streaming from webcam.
Computer-assisted miniature tank game.
Direct tissue-level image quantification package for Mathematica
Scada for Home Automation
Short bash script to create Stop Motion and Time-Lapse videos
Uses a webcam as a photo trap / movement detector
Pombo can help you recover your computer in the event it's stolen.