[PD] video analysis II
Tom Schouten
doelie at zzz.kotnet.org
Mon Mar 24 01:32:33 CET 2003
> pdp has no analysis objects as such, but yves' pidip extention
> has a couple:
> pdp_ctrack colour tracker, outputs the coordinates of a
> colour(+luminosity) in a video stream..
> pdp_mgrid outputs cell coordinates of a grid where motion
> is detected..
>
just a hint:
there is a "workaround" to analyze pictures by using pdp_scanxy~
this object works like tabplay~, but it scans the luminocity channel of a
video frame, instead of an array. it accepts coordinates as signal input.
(0,0) is top left and (1,1) is bottom right. you could use a phasor~
object to generate coordinates.
if you use the audio output of pdp_scanxy~ in combination with env~ and
some lop~ and hip~ objects, you can construct some very basic motion
(hip) and intensity (lop) detection objects.
tom
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