This is an add that i wrote to tray to clean static object that might
appear in the scene and we dont want to be seen by the contour finder.
Makes the background to change dynamically, what mean that objects
that stay in the scene static for more than a time,
will be added to the background.
You can download the source and an example here:
ofxDynamicBackground.zip
at
ftp.juliolucio.com
user: openframeworks
pass: thed00d
Enjoy and keep creating