Hello, You can use [pix_crop] with [pix_movement]/[pix_movement2] and [pix_blob] to have something similar to [pdp_mgrid]. [pix_crop] will return a subimage of a (for example) video from a webcam. Apply on each subimage [pix_movement]/[pix_movement2] and [pix_blob] to return the id (or coords) of the [pix_crop] when the size of the blob is > to a certain value. ++
Jack Le mercredi 08 décembre 2010 à 21:56 -0300, Jose Luis Santorcuato a écrit : > Hi list, Hi Hans, I really liked using pdp_mgrid why I allowed to > follow each of the points that I requested, even could make > conditional for each of the points of intersection, not only on an > axis. > The object pix_blob also gave me those readings, but always so noisy > and erratic, usually can detect the presence and the occasional > movement, have a leading colleagues have recommended pix_background, > but no taste, what recommend you to detect exactly each quadrant? ... > ideal would be a kind of grid. > Gridflow have also recommended, but still can not quite decipher the code. > > Thanks for responding. > > Best regards > > José > > 2010/12/8 Hans-Christoph Steiner <[email protected]> > > > > Which kind of tracking to do want to do? It should be pretty easy to a > > motiongrid as an abstraction. Start with the diff tracking Gem example, > > and then just break it down into a grid. > > > > .hc > > > > On Dec 7, 2010, at 10:54 PM, Pagano, Patrick wrote: > > > >> lets make a replacement patch. where shall we begin? > >> > >> pp > >> ________________________________________ > >> From: [email protected] [[email protected]] On Behalf Of Derek > >> Holzer [[email protected]] > >> Sent: Tuesday, December 07, 2010 4:32 PM > >> To: [email protected] > >> Subject: Re: [PD] new license for pidip and unauthorized WAS: pd-pidip > >> into Debian > >> > >> Motion tracking can be done easily in GEM with a combination of > >> [pix-background] to create a histrogram showing only changed pixel > >> values, and [pix_blob] to track the center of gravity of those changed > >> values. > >> > >> D. > >> > >> On 12/7/10 6:43 PM, Jose Luis Santorcuato wrote: > >>> > >>> I don't quite understand why people do motion detection with squares > >>> like that. I use a generic motion detection that gets me the centre of > >>> the motion, and then when I rescale the values, it may split the > >>> possible results into bands or squares because of rounding (if I > >>> quantise them). > >>> Hi all!, > >>> what is the generic motion detector you are using Mathieu? I use pdp... > >>> Best Regards > >>> José > >>> 2010/12/7 Mathieu Bouchard <[email protected] > >>> <mailto:[email protected]>>: > >>>> > >>>> On Tue, 7 Dec 2010, Pagano, Patrick wrote: > >>>> > >>>>> pdp_mgrid > >>>> > >>>> I don't quite understand why people do motion detection with squares like > >>>> that. I use a generic motion detection that gets me the centre of the > >>>> motion, and then when I rescale the values, it may split the possible > >>>> results into bands or squares because of rounding (if I quantise them). > >>>> > >>>> Nevertheless, if I have a picture of size (240 320 3), I can make > >>> > >>> groups of > >>>> > >>>> rows and columns, for example I [#redim (15 16 20 16 3)], which turns a > >>>> picture into a 5-dimensional grid, and then if I [#transpose 1 2], I will > >>>> have a 5-dimensional grid that is a 2-dimensional grid of 16x16 > >>> > >>> icons. After > >>>> > >>>> that, many effects and analyses that GF can do on pictures will also > >>> > >>> work on > >>>> > >>>> such groups of pictures without any change. > >>>> > >>>> But more simply, if I want an average of each 16x16 icon, I don't > >>> > >>> need to go > >>>> > >>>> 5-dimensional, I can just do [#downscale_by 16 smoothly] and that's all. > >>>> > >>>>> pdp_cmap > >>>>> pdp_ctrack > >>>>> pdp_ascii > >>>>> are essential > >>>> > >>>> I'd like to know what it takes for you to call something «essential». > >>> > >>> Do you > >>>> > >>>> mean that there is no other way to do it with Pd, or just no other > >>> > >>> way to do > >>>> > >>>> with with PDP ? > >>>> > >>>>> pdp_qt will be obsolete when we get either pix_film OR pix_movie or > >>>>> whatever to play audio directly from a movie without extra table banging > >>>>> [hopefully this exists somewhere] > >>>> > >>>> There's [#in~], which is rather experimental. It uses [#to~]. > >>>> > >>>> _______________________________________________________________________ > >>>> | Mathieu Bouchard ---- tél: +1.514.383.3801 ---- Villeray, Montréal, QC > >>>> _______________________________________________ > >>>> [email protected] <mailto:[email protected]> mailing list > >>>> UNSUBSCRIBE and account-management -> > >>>> http://lists.puredata.info/listinfo/pd-list > >>>> > >>>> > >>> -- > >>> http://arselectronicachile.blogspot.com > >>> http://comunicacionnativa.blogspot.com/ > >>> http://www.myspace.com/santorcuato > >>> > >>> > >>> > >>> _______________________________________________ > >>> [email protected] mailing list > >>> UNSUBSCRIBE and account-management -> > >>> http://lists.puredata.info/listinfo/pd-list > >> > >> -- > >> ::: derek holzer ::: http://macumbista.net ::: > >> ---Oblique Strategy # 207: > >> "Take away as much mystery as possible. What is left?" > >> > >> _______________________________________________ > >> [email protected] mailing list > >> UNSUBSCRIBE and account-management -> > >> http://lists.puredata.info/listinfo/pd-list > >> > >> _______________________________________________ > >> [email protected] mailing list > >> UNSUBSCRIBE and account-management -> > >> http://lists.puredata.info/listinfo/pd-list > > > > > > > > > > ---------------------------------------------------------------------------- > > > > You can't steal a gift. Bird gave the world his music, and if you can hear > > it, you can have it. - Dizzy Gillespie > > > > > > > > > > _______________________________________________ > > [email protected] mailing list > > UNSUBSCRIBE and account-management -> > > http://lists.puredata.info/listinfo/pd-list > > > > -- > http://arselectronicachile.blogspot.com > http://comunicacionnativa.blogspot.com/ > http://www.myspace.com/santorcuato > > _______________________________________________ > [email protected] mailing list > UNSUBSCRIBE and account-management -> > http://lists.puredata.info/listinfo/pd-list _______________________________________________ [email protected] mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list
