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#X declare -lib Gem;
#X text 452 8 GEM object;
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#X text 40 277 Inlets:;
#X text 39 369 Outlets:;
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#X text 18 226 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 msg 67 70 set destroy;
#X msg 132 112 create \, 1;
#X msg 198 112 destroy;
#X msg 156 71 set create;
#X obj 67 41 route create;
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#X restore 549 329 pd gemwin;
#X msg 549 310 create;
#X text 545 289 Create window:;
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#X obj 451 83 gemhead;
#X text 17 383 Outlet 1: gemlist;
#X text 24 291 Inlet 1: gemlist;
#X obj 451 322 square 3;
#X obj 451 300 pix_texture;
#X text 71 31 Class: pix object (timebased effect);
#X obj 451 151 pix_film;
#X obj 515 151 t f;
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#N canvas 0 22 450 300 open 0;
#X obj 85 49 inlet;
#X obj 85 237 outlet;
#X obj 85 145 openpanel;
#X msg 85 179 open \$1;
#X msg 259 213 auto 1;
#X obj 268 179 loadbang;
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#X connect 4 0 1 0;
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#X restore 464 131 pd open;
#X text 505 77 open a supported;
#X text 506 88 movie-clip;
#X text 523 114 macOS: quicktime;
#X text 516 104 MS Windows: *.AVI;
#X text 523 124 linux: depends...;
#X floatatom 495 190 3 0 100 2 lo_threshold - -;
#X obj 494 206 / 100;
#X text 50 12 Synopsis: [pix_movement2];
#X obj 451 232 pix_movement2;
#X floatatom 549 211 3 0 100 2 threshold - -;
#X obj 548 227 / 100;
#X msg 456 194 bang;
#X text 29 57 Description: timebase IIR-filter for motion detection
;
#X text 14 130 since image-noise can disturb this processing \, changes
between two corresponding pixels that are smaller than "threshold"
are ignored. The "threshold" is initially set to <threshold> and adjusts
itself dynamically downwards towards <lo_threshold> (which is the absolute
minimum);
#X text 64 237 float: <lo_threshold> (0..1);
#X text 66 252 float: <initial_threshold> (0..1);
#X text 24 306 Inlet 1: bang: set the current frame as "background"
;
#X text 24 323 Inlet 2: float: <lo_threshold> changes in the image
that are smaller then <lo_threshold> are ignored;
#X text 24 348 Inlet 3: float: <initial_threshold>;
#X text 457 368 see also:;
#X obj 521 370 pix_movement;
#X text 15 78 [pix_movement2] detects movement in a frame with respect
to the 2 previous frames and a "background"-image and stores it as
a b/w-image (greyscale).;
#X obj 548 8 declare -lib Gem;
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