Wrote the Processing library and demo sketch tonight, having ported it over from the ActionScript library and demo from the last video. Something to note is that this library will act as a GML (Graffiti Markup Language) parser as well, albeit only for getting the data associated with strokes and points.
The tag in the video is by FRITE and is included in Graffiti Analysis 2.0, which you can snag here: graffitianalysis.com/downloads/
Next up: the C++ port as an openFrameworks add-on and a Cinder Block. Hopefully it'll go as smoothly as the Processing port did.