kp123 is a very basic kanji handwriting recognition tool loosely based on:

http://fishsoup.net/software/kanjipad/
http://www.ookii.org/software/japaneseinput/
http://en.wikipedia.org/wiki/Levenshtein_distance

This program is released under free license in the form of source code.

If you have any questions, please do not hesitate to mail me:
evgeny@users.sourceforge.jp