[PD] pix_multiblob and tracking multiple objects

IOhannes zmölnig zmoelnig at iem.at
Thu Apr 18 00:17:45 CEST 2013

On 04/17/2013 09:59 PM, Ska Frenz wrote:
> Hi everyone, this is my first time on the pd-list so I hope I won't do
> anything wrong.
> I'm writing here to get some help about pd tracking objects (pix_blob..).
> I'm using the background subtraction method, to track objects and I need
> help to understand how I can track multiple objects with multiples
> different blobs. I'm trying the pix_multiblob and yes, it show 2 blobs..but
> they track the same object. Then basically I do not understand how can I
> make the first blob to follow just one object for all the time that
> specific object is inside the webcam rectangle, and the second blob to
> track another separate object. I cannot find any material that clearly
> talks about this.I attached the patch I'm working on. I'd love to see some
> well-explained examples if you know where to get them.
> Thank you very much for your help :)

checkout [pix_blobtracker] for a rudimentary labelling algorithm using 


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