[GEM-dev] Tracking a specific color

[Ricardo Fabbri]

Just remembered a short video demo of tracking greenish in pd, as you asked:

* *http://vimeo.com/rfabbri/color-joystick

It uses pix_colorclassify. I am actively maintaining this so if you have
any trouble using it just let me know. Hope it can be useful in your case.


Best,
Ricardo Fabbri
--
Linux registered user #175401
www.lems.brown.edu/~rfabbri <http://www.lems.brown.edu/%7Erfabbri>
pt.wikipedia.org/wiki/IPRJ
labmacambira.sf.net


On Fri, May 25, 2012 at 8:42 AM, Ricardo Fabbri <rfabbri at gmail.com> wrote:

> PS: btw, pix_colorclassify actually does exactly what you want. It
> supports Greenish, Red-ish, Yellow-ish, Blue-ish, Black-ish and White-ish
> ;) And it has been extensively developed and tested using a large database
> of real colored paper photos under different
> illumination conditions. You may need a very recent GEM.
>
>
> Ricardo Fabbri
> --
> Linux registered user #175401
> www.lems.brown.edu/~rfabbri <http://www.lems.brown.edu/%7Erfabbri>
> pt.wikipedia.org/wiki/IPRJ
> labmacambira.sf.net
>
>
> On Fri, May 25, 2012 at 8:40 AM, Ricardo Fabbri <rfabbri at gmail.com> wrote:
>
>> 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 <http://www.lems.brown.edu/%7Erfabbri>
>> pt.wikipedia.org/wiki/IPRJ
>> labmacambira.sf.net
>>
>>
>>
>> On Thu, May 24, 2012 at 8:36 PM, Max <abonnements at 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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>
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