The files about motion detection and tracking techniques with Pure Data and GEM:
Hier die Dateien aus dem Unterricht zu Motion Detection und Tracking mit Pure Data und GEM:
These Pure Data/GEM patches make use of a (web)cam. Please make sure to connect one prior to launching Pure Data.
Since only one patch can access the video camera at a time, please close the first patch before opening the next one.
On Linux and Windows doubleclicking on a file may cause another instance of Pd to launch. Please use the open dialog from the File menu instead of clicking on the files.
Download: Media:Bewegungsmelder.zip with english comments
There is also the hot stuff at the Github repository
To get you started with Pure Data I recommend following the suggestions and links on the page: Pure Data - Getting started.