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#X text 452 8 GEM object;
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#X text 40 267 Inlets:;
#X text 39 365 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 67 89 outlet;
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#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 545 327 pd gemwin;
#X msg 545 308 create;
#X text 541 287 Create window:;
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#X obj 451 83 gemhead;
#X text 17 379 Outlet 1: gemlist;
#X text 24 281 Inlet 1: gemlist;
#X obj 451 302 square 3;
#X obj 451 280 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 0 450 300 open 0;
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#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 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 text 29 57 Description: timebased IIR-filter;
#X floatatom 457 191 3 0 1 2 fb0 - -;
#X floatatom 481 191 3 0 1 2 fb1 - -;
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#X msg 534 238 set;
#X text 23 298 Inlet 1: message: set: overwrites the filter-buffers
with the next incoming image.;
#X text 439 378 see also:;
#X obj 509 381 pix_tIIR;
#X text 23 76 basically it works like the Pd-object [biquad~] (except
\, that applies to images instead of samples);
#X text 39 134 y(n) = ff1 * w(n) + ff2 * w(n-1) + ff3 * w(n-2);
#X text 40 149 w(n) = fb0 * x(n) + fb1 * w(n-1) + fb2 * w(n-2);
#X text 32 104 the operation can be described by the following difference-equation:
;
#X text 18 166 x(n) describes the input-image \, y(n) is the output-image.
;
#X text 16 183 You can set all buffer-images w(m) to the next input-image
x(n) with the "set"-command.;
#X text 64 237 list:;
#X obj 572 381 biquad~;
#X text 50 12 Synopsis: [pix_biquad];
#X obj 451 258 pix_biquad;
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#X text 22 327 Inlet 1: <list> : the filter-coefficients "fb0 fb1 fb2
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