[PD] Installation with GEM

Max Neupert abonnements at revolwear.com
Fri Apr 22 14:05:51 CEST 2005

1. there is a tutorial and help files comming with gem, they are 
2. you may find some more in the net, like:
3. i've made one for bloody beginners in german:
4. for yur stuff you might want to have alook in the helpfiles of 
pix_background and pix_movement
there is also doc/11.Gem/04.Video/03.movement_detection.pd


Max Neupert
Tutor im Fachgebiet Medienkunst
Hochschule für Kunst und Design
Burg Giebichenstein
Halle, Deutschland


Am 22.04.2005 um 12:36 schrieb Florian Grond:

> Dear List,
> I would like to realize an installation in GEM but I don't know if 
> there are appropriate objects or If I have to teach myself how to 
> program them.
> If you could give me advise which direction to go I would be very 
> pleased.
> Two cameras would send their frames to two image stacks which contain 
> say 30 frames (the more the better).
> The actual frame is subtracted from the last one and the resulting 
> frame of this simple kind of movement-dedection would serve as a 
> parameter to compose from the two stacks the actual video output 
> reading each single pixel in a random manner from the two stacks 
> mixing both by using an appropriate function.
> Does anyone have an idea how to realize that with existing objects, 
> and if not, where do I find good documentation to learn how to program 
> GEM.
> Thanks a lot,
> Florian
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