[PD] diff frame from previous frame with Gem

[Max]

hi hans,

why so complicated? just use [pix_delay 2] and [pix_separator] to feed the [pix_diff].

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taken from
http://web.uni-weimar.de/medien/wiki/Bewegungsmelder

Am 03.03.2010 um 23:39 schrieb Hans-Christoph Steiner:

> 
> I am trying to make a simple patch where the current video frame is [pix_diff]'ed against the previous video frame.  I can get it going manually, but I would like it to happen every frame.  I think I got close, but did manage to create a bizarre effect:
> <framechangetracking.pd>
> 
> 
> .hc
> 
> ----------------------------------------------------------------------------
> 
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