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#X text 452 8 GEM object;
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0;
#X text 39 258 Inlets:;
#X text 39 390 Outlets:;
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#X text 17 215 Arguments:;
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#X text 453 60 Example:;
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#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 142 68 set create;
#X msg 132 112 create \, 1;
#X msg 198 112 destroy;
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#X restore 519 293 pd gemwin;
#X msg 519 274 create;
#X text 515 253 Create window:;
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#X obj 451 84 gemhead;
#X text 71 31 Class: pix object;
#X obj 510 85 bng 15 250 50 0 empty empty pix_load 20 8 0 8 -262144
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#X obj 451 233 pix_texture;
#X text 63 226 <none>;
#X text 27 403 Outlet 1: gemlist;
#X text 33 272 Inlet 1: gemlist;
#X obj 451 255 square 3;
#X msg 464 154 reset;
#X text 50 12 Synopsis: [pix_background];
#X text 537 192 threshold;
#X text 29 77 Description: separate an objects from background;
#X text 33 309 Inlet 1: bang: alias for reset;
#X text 9 92 [pix_background] 'removes' the background of an image
by comparing a static image in memory to an incoming video stream.
all values withing a given range are turned black. for best effect
\, place a camera on a static scene like a blank wall and hit 'reset'.
then set the range control to cover any variance in the background.
when a new object enters the scene it will be the only thing draw against
a black background. use pix_chroma_key or pix_compare to add in images
in place of the black.;
#X text 33 284 Inlet 1: message: reset : reset the background and capture
a new image;
#X text 34 375 Inlet 2: float: range (<f> == <f> <f> <f>);
#X text 34 322 Inlet 2: list: range \; in RGBA mode this is <+-red>
<+-green> <+-blue> \; in YUV-mode this is <+-luma> <+-Cb> <+-Cr> \;
in Gray-mode only the first value is important <+-gray>;
#X obj 451 207 pix_background;
#X msg 516 177 \$1 \$1 \$1;
#X msg 516 142 0.5;
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#X msg 223 123 open \$1;
#X obj 223 100 openpanel;
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#X connect 9 0 7 0;
#X restore 451 113 pd film;
#X text 516 105 open an movie;
#X text 509 118 (AVI \, MPEG \, MOV);
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