<p class="MsoNormal"><span style="" lang="EN">Well, I used
pix_blob, or blob tracker, do not remember exactly, but I always gave erratic
readings or based only on two axes, I like working with coordinate and mgrid
are well suited to that need. </span><span title="">Mathieu Gridflow ever asked
me, I have not tried what Derek and Mathieu proposes no doubt I will today, but
obviously I ask the question because I do not like to rely on a single object
or platform.</span></p><p class="MsoNormal"><br></p><p class="MsoNormal">Best regards friends</p><p class="MsoNormal"><br></p><p class="MsoNormal">José<br><span title=""></span><span style="" lang="EN-GB"></span></p>
<br><br>This is a great topic<br><br>B regards<br><br>José<br><br><div class="gmail_quote">2010/12/8 Pagano, Patrick <span dir="ltr"><<a href="mailto:pat@digitalworlds.ufl.edu">pat@digitalworlds.ufl.edu</a>></span><br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">lets make a replacement patch. where shall we begin?<br>
<br>
pp<br>
<div class="im">________________________________________<br>
From: <a href="mailto:pd-list-bounces@iem.at">pd-list-bounces@iem.at</a> [<a href="mailto:pd-list-bounces@iem.at">pd-list-bounces@iem.at</a>] On Behalf Of Derek Holzer [<a href="mailto:derek@umatic.nl">derek@umatic.nl</a>]<br>
</div>Sent: Tuesday, December 07, 2010 4:32 PM<br>
<div class="im">To: <a href="mailto:pd-list@iem.at">pd-list@iem.at</a><br>
Subject: Re: [PD] new license for pidip and unauthorized WAS: pd-pidip into Debian<br>
<br>
</div><div><div></div><div class="h5">Motion tracking can be done easily in GEM with a combination of<br>
[pix-background] to create a histrogram showing only changed pixel<br>
values, and [pix_blob] to track the center of gravity of those changed<br>
values.<br>
<br>
D.<br>
<br>
On 12/7/10 6:43 PM, Jose Luis Santorcuato wrote:<br>
> I don't quite understand why people do motion detection with squares<br>
> like that. I use a generic motion detection that gets me the centre of<br>
> the motion, and then when I rescale the values, it may split the<br>
> possible results into bands or squares because of rounding (if I<br>
> quantise them).<br>
> Hi all!,<br>
> what is the generic motion detector you are using Mathieu? I use pdp...<br>
> Best Regards<br>
> José<br>
> 2010/12/7 Mathieu Bouchard <<a href="mailto:matju@artengine.ca">matju@artengine.ca</a> <mailto:<a href="mailto:matju@artengine.ca">matju@artengine.ca</a>>>:<br>
> > On Tue, 7 Dec 2010, Pagano, Patrick wrote:<br>
> ><br>
> >> pdp_mgrid<br>
> ><br>
> > I don't quite understand why people do motion detection with squares like<br>
> > that. I use a generic motion detection that gets me the centre of the<br>
> > motion, and then when I rescale the values, it may split the possible<br>
> > results into bands or squares because of rounding (if I quantise them).<br>
> ><br>
> > Nevertheless, if I have a picture of size (240 320 3), I can make<br>
> groups of<br>
> > rows and columns, for example I [#redim (15 16 20 16 3)], which turns a<br>
> > picture into a 5-dimensional grid, and then if I [#transpose 1 2], I will<br>
> > have a 5-dimensional grid that is a 2-dimensional grid of 16x16<br>
> icons. After<br>
> > that, many effects and analyses that GF can do on pictures will also<br>
> work on<br>
> > such groups of pictures without any change.<br>
> ><br>
> > But more simply, if I want an average of each 16x16 icon, I don't<br>
> need to go<br>
> > 5-dimensional, I can just do [#downscale_by 16 smoothly] and that's all.<br>
> ><br>
> >> pdp_cmap<br>
> >> pdp_ctrack<br>
> >> pdp_ascii<br>
> >> are essential<br>
> ><br>
> > I'd like to know what it takes for you to call something «essential».<br>
> Do you<br>
> > mean that there is no other way to do it with Pd, or just no other<br>
> way to do<br>
> > with with PDP ?<br>
> ><br>
> >> pdp_qt will be obsolete when we get either pix_film OR pix_movie or<br>
> >> whatever to play audio directly from a movie without extra table banging<br>
> >> [hopefully this exists somewhere]<br>
> ><br>
> > There's [#in~], which is rather experimental. It uses [#to~].<br>
> ><br>
> > _______________________________________________________________________<br>
> > | Mathieu Bouchard ---- tél: +1.514.383.3801 ---- Villeray, Montréal, QC<br>
> > _______________________________________________<br>
> > <a href="mailto:Pd-list@iem.at">Pd-list@iem.at</a> <mailto:<a href="mailto:Pd-list@iem.at">Pd-list@iem.at</a>> mailing list<br>
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> ><br>
> --<br>
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> <a href="http://www.myspace.com/santorcuato" target="_blank">http://www.myspace.com/santorcuato</a><br>
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--<br>
::: derek holzer ::: <a href="http://macumbista.net" target="_blank">http://macumbista.net</a> :::<br>
---Oblique Strategy # 207:<br>
"Take away as much mystery as possible. What is left?"<br>
<br>
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