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
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