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 <[email protected]> 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 <[email protected]> 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? >> >> >> >> >> >> _______________________________________________ >> >> GEM-dev mailing list >> >> >> >> [email protected] >> >> http://lists.puredata.info/listinfo/gem-dev >> > >> > _______________________________________________ >> > GEM-dev mailing list >> > [email protected] >> > http://lists.puredata.info/listinfo/gem-dev >> >> >> _______________________________________________ >> GEM-dev mailing list >> [email protected] >> http://lists.puredata.info/listinfo/gem-dev >> >> >
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