Vectoriser Demo
Instructions: When the little black image has filled in blue, hold the mouse down and sweep left and right to magnify or de-magnify the the vectorisation.

Update 21/12/04: A colour version of the scanner that exports an Illustrator 8 file can be downloaded for use in Processing here. It requires you have the Illustrator export class (available from here) to use it and the resulting files will have to be manually scaled in Illustrator for now. This I will also update because I'm ironing out bugs, try not to scan greater than 300x200 unless you have beefy RAM or plenty of time. Please contact me about any issues/ideas you may have.

Source code
Built with Processing