#N canvas 288 289 775 405 10;
#X text 452 8 GEM object;
#X obj 9 265 cnv 15 430 135 empty empty empty 20 12 0 14 -233017 -66577
0;
#X text 40 267 Inlets:;
#X text 39 365 Outlets:;
#X obj 9 227 cnv 15 430 30 empty empty empty 20 12 0 14 -195568 -66577
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#X text 18 226 Arguments:;
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#X text 453 60 Example:;
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#N canvas 0 0 450 300 gemwin 0;
#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;
#X connect 2 0 7 0;
#X connect 3 0 1 0;
#X connect 4 0 0 0;
#X connect 5 0 0 0;
#X connect 6 0 1 0;
#X connect 7 0 3 0;
#X connect 7 0 4 0;
#X connect 7 1 6 0;
#X connect 7 1 5 0;
#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;
#X obj 464 103 bng 25 250 50 0 empty empty empty 0 -6 0 8 -262144 -1
-1;
#N canvas 0 0 450 300 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;
#X connect 0 0 2 0;
#X connect 2 0 3 0;
#X connect 3 0 1 0;
#X connect 4 0 1 0;
#X connect 5 0 4 0;
#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 windos: *.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 - -;
#X floatatom 505 191 3 0 1 2 fb2 - -;
#X floatatom 534 191 3 0 1 2 ff1 - -;
#X floatatom 558 191 3 0 1 2 ff2 - -;
#N canvas 0 0 450 300 init 0;
#X msg 175 214 0.3;
#X msg 247 215 0.6;
#X obj 104 258 outlet;
#X obj 154 258 outlet;
#X obj 204 258 outlet;
#X obj 254 258 outlet;
#X obj 304 258 outlet;
#X obj 244 59 inlet;
#X obj 388 158 t b;
#X msg 378 201 1;
#X msg 413 201 0;
#X obj 246 88 route 1;
#X msg 104 214 0.2;
#X msg 140 215 0.5;
#X obj 353 258 outlet;
#X msg 277 215 0.2;
#X msg 312 213 0.2;
#X obj 238 127 t b;
#X obj 193 105 t b b;
#X obj 277 115 t b b;
#X msg 277 135 1;
#X connect 0 0 4 0;
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#X connect 8 0 9 0;
#X connect 8 0 10 0;
#X connect 9 0 5 0;
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#X connect 10 0 4 0;
#X connect 10 0 6 0;
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#X connect 11 1 19 0;
#X connect 12 0 2 0;
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#X connect 20 0 2 0;
#X restore 605 174 pd init;
#X obj 605 157 tgl 15 0 empty empty empty 0 -6 0 8 -262144 -1 -1 0
1;
#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;
#X floatatom 582 191 3 0 1 2 ff3 - -;
#X obj 457 209 pack 1 0 0 1 0 0;
#X text 22 327 Inlet 1: <list> : the filter-coefficients "fb0 fb1 fb2
ff1 ff2 ff3";
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#X connect 20 0 50 0;
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#X connect 22 0 23 0;
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#X connect 30 0 52 0;
#X connect 31 0 52 1;
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#X connect 50 0 18 0;
#X connect 51 0 52 5;
#X connect 52 0 50 0;
