Harpia is a nice graphical wrapper for powerful opencv applications.
It can be used on both Windows and Linux.
The main goals of Harpia are
1 Development of a simple, useful graphic interface for vision systems.
2 Development of a system for communication and monitoring of remote vision systems also based on high level graphic interface.
3 Development of an environment for artificial intelligence learning based on computacional vision.
4 Build an Open-Source and national system allowing the spread of knowledge inside the area of computacional vision.
5 Allow the access to a high level quality control system based on computacional vision.