path: root/Gem/pix_mano-help.pd

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#X text 20 114 These presets are what I use for the MANO Controller
at 320x240.;
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#X text 456 122 inlet 1;
#X text 458 141 mode 0: regular function (others used for debugging)
;
#X text 457 153 thresh: threshold for contrast step;
#X text 459 270 pix_avg: number of pixels to average the contour;
#X text 458 304 min_entry_size: minimum entry size to be considered
as a hand;
#X text 458 326 min_perim: minimum perimeter to be considered a hand
;
#X text 459 378 OUTLETS;
#X text 459 444 outlet 2: elements in the smoothed contour;
#X text 460 478 outlet 3: peaks found in the contour;
#X text 460 519 outlet 4: valleys found in the contour;
#X text 460 561 outlet 5: contours found;
#X text 461 612 outlet 6: end of algorithm report;
#X text 457 218 inlet 2: defines the bounds of the area of analysis
;
#X text 484 230 bottom \, top \, right \, left;
#X text 457 251 inlet 3: parameters of contour analysis;
#X text 458 282 pix_tip: number of contiguous pixels higher than tip_scalar
to consider something a peak or valley;
#X text 482 188 mode \, thresh \, tip_scalar;
#X text 457 164 tip scalar: scalar of maximum angle to consider something
a peak or valley;
#X text 458 337 pix_samp: period of sampling of the averaged contour
;
#X text 483 351 pix_avg \, pix_tip \, min_entry_size \, min_perim \,
pix_samp;
#X text 460 662 order of outlets: 1 2 5 3 4 6;
#X text 460 410 outlet 1: elements in the raw contour (only in mode
2);
#X text 60 371 pix_mano is an object that tracks light reflecting objects
(eg. hands) over a light absorbing background (eg. black cloth). Light
reflecting objects need to enter the video frame from one of the sides
to be recognized. For example \, a white circle in the center will
not be recognized as there is no entry point in the borders of the
frame.;
#X text 58 496 Roughly \, the object works by setting a threshold to
discriminate between black and white pixels. shapes formed of white
pixels are analyzed in the order of largest entry section.;
#X text 581 698 support information in www.jaimeoliver.pe;
#X text 59 553 For each object an analysis of its contour is achieved.
(see graph option in outlet two while entering your hand into the frame).
The contours formed by a hand are averaged for smoothing and sampled
\, and then are plotted as x \, y coordinates and variation in angle
with respect to the previous sampled point. An analysis of this contour
provides tips (positive peaks) and valleys (negative peaks);
#X text 76 646 This object was programmed as part of the Silent Percussion
Project \, for use in the MANO Controller. For more information: http://www.jaimeoliver.pe
;
#X obj 117 117 pack f f f f;
#X text 695 712 jaime.oliver@gmail.com;
#X text 715 727 joliverl-2010 v0.01;
#X obj 161 206 pix_mano;
#X text 460 396 outlet 0: the analyzed video image;
#X obj 161 246 rectangle 5.33 4;
#X text 60 453 Although this version is fully functional \, there are
still a few bugs to work on and optimizations to be achieved. It is
still in an experimental level;
#X text 476 423 [index \, x coordinate \, y coordinate \, angle];
#X text 475 457 [index \, x coordinate \, y coordinate \, angle];
#X text 476 491 [index of contour \, index of tip \, position (x \,
y) \, magnitude \, angle \, position in contour];
#X text 476 532 [index of contour \, index of tip \, position (x \,
y) \, magnitude \, angle \, position in contour];
#X text 476 574 [index of contour \, entry_point (x \, y) \, area \,
direction \, center (x \, y) \, perimeter \, entr_size \, bounds: right
(x \, y) \, left (x \, y) \, top (x \, y) \, bottom (x \, y).];
#X text 477 625 if there were any contours = 1;
#X text 477 635 if there were no contours = 0;
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