you may also want to take a look at pix_colorclassify, its help file and associated demo.

best,
Ricardo Fabbri
--
Linux registered user #175401
www.lems.brown.edu/~rfabbri
pt.wikipedia.org/wiki/IPRJ
labmacambira.sf.net


On Thu, May 24, 2012 at 8:36 PM, Max <abonnements@revolwear.com> wrote:
John Harrison posted on the Pd-list (not the Gem-dev-list) a nice approach in rgb. I've incorporated them in the updated patches:
http://www.uni-weimar.de/medien/wiki/Bewegungsmelder

m.

Am 24.05.2012 um 22:03 schrieb Matthias Kronlachner:

> hi!
>
> use pix_rgb2hsv to convert to hsv colorspace.
> then use pix_curve with 3 different tables for hue, saturation and value to filter out the desired color.
> then convert back with pix_hsv2rgb.
> it's a little bit of experimenting with the curves...
>
> matthias
>
> Am 24.05.12 21:54, schrieb Alexandros Drymonitis:
>> Hi,
>> I'm trying to use some patches Max Neupert has published, to track motion. The patches use [pix_movement], [pix_background], [pix_blob] and other objects (not all of them in all the patches). I can track white for now fine, but can't really find out how to track green, for example (well, the actual color I want to track is greenish).
>> Any suggestions on how to do this?
>>
>>
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