[PD] tracking multiblob with constant ID

[Mathieu Bouchard]

On Fri, 18 Feb 2011, Jaime Oliver wrote:

> We're working to get a more definite solution. This is a kind of object 
> that i think wold be of general use for pd users.  So, I imagine other 
> people have done similar objects??? 

Matching nearest neighbours in general is a nice idea, but if you wanted 
something based on actual overlap of the detected areas, you can't do that 
with min/max data or centroïd data. That's why [#labelling] also outputs a 
version of the incoming grid in which the "1" regions have all been 
flood-filled with distinct integers (numbered from 2 upwards ; it can go 
well beyond 255 if needed).

However, I don't know any easy way to compare two images for overlap (in 
number of pixels), and I have not tried this yet (nor any other form of 
tracking of the found regions).

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| Mathieu Bouchard ---- tél: +1.514.383.3801 ---- Villeray, Montréal, QC