Python is a programming language that lets you work more quickly and integrate your systems more effectively. It runs on Windows, Linux/Unix, Mac OS X, and has been ported to the Java and .NET virtual machines.
www.python.org
The Python Imaging Library (PIL) adds image processing capabilities to your Python interpreter. This library supports many file formats, and provides powerful image processing and graphics capabilities.
www.pythonware.com/products/pil/