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path: root/pix_opencv_bgsubstract-help.pd
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#N canvas 515 94 691 547 10;
#X obj 618 -33 gemhead;
#X obj 364 374 pix_texture;
#X obj 364 402 square 2;
#X obj 20 159 cnv 15 220 70 empty empty empty 20 12 0 14 -195568 -66577
0;
#N canvas 0 22 454 304 gemwin 0;
#X obj 132 136 gemwin;
#X obj 67 89 outlet;
#X obj 67 10 inlet;
#X obj 67 41 route create;
#X msg 67 70 set destroy;
#X msg 182 68 set create;
#X msg 132 112 create \, 1;
#X msg 238 112 destroy;
#N canvas 87 154 247 179 Gem.init 0;
#X obj 118 46 loadbang;
#X msg 118 81 reset;
#X obj 118 113 outlet;
#X connect 0 0 1 0;
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#X restore 289 80 pd Gem.init;
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#X connect 3 0 4 0;
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#X restore 25 203 pd gemwin;
#X msg 25 179 destroy;
#X text 21 159 Create window and render;
#X obj 200 368 pix_texture;
#X obj 200 396 square 2;
#X obj 266 167 translateXYZ -2 0 0;
#X obj 367 224 separator;
#X obj 346 281 cnv 15 255 67 empty empty empty 20 12 0 14 -24198 -66577
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-1 -1;
#X floatatom 550 74 5 0 10000 1 frame# - -;
#X obj 511 -37 openpanel;
#X msg 511 -17 open \$1;
#X obj 499 92 pix_film;
#X msg 517 26 auto \$1;
#X obj 517 8 tgl 15 0 empty empty empty 0 -6 0 8 -262144 -1 -1 0 1
;
#X msg 528 50 colorspace Grey;
#X obj 364 259 translateXYZ 4 0 0;
#X floatatom 529 321 5 0 0 0 - - -;
#X obj 364 322 pix_opencv_bgsubstract;
#X msg 472 288 set;
#X text 508 288 set the background;
#X text 572 320 threshold (default 13);
#X text 26 -2 This object takes an image as a background reference
and the compare each incomming frame with that. On the output you get
a bw image \, black pixels are considered as background and white poixels
as foreground.;
#X text 27 -94 pix_opencv_bgsubstract :: A simple background substract
and binarization object.;
#X text 26 -49 It is useful if you want to detect objects that are
in front of an static background and you want to isolate the foreground
silhouete of the foreground objects.;
#X text 26 59 pix_opencv_bgsubstract works comparing color values of
each pixel \, so it can fail if the foreground object has the same
color that the background \, and also if the light conditions or the
shadows changes since you SET the background image.;
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