#N canvas 1 49 1424 780 10;
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-66577 0;
#X obj -175 -111 tgl 15 0 empty empty empty 17 7 0 10 -262144 -1 -1
0 1;
#X obj -175 -84 metro 40;
#X msg -130 -28 close;
#X obj -155 14 pdp_v4l;
#X msg -137 -55 open /dev/video0;
#X obj -30 -111 tgl 15 0 empty empty empty 17 7 0 10 -262144 -1 -1
0 1;
#X obj -30 -84 metro 40;
#X msg 34 -65 close;
#X msg 30 -89 open /dev/video0;
#X obj -10 14 pdp_v4l2;
#X msg 31 -13 format \$1;
#X obj 32 -35 hradio 15 1 0 4 empty empty empty 0 -8 0 10 -262144 -1
-1 0;
#X text -145 -113 Camera input;
#X text -188 -181 written by yves degoyon ( ydegoyon@gmail.com );
#X text 376 -143 input 1;
#X obj 447 -146 cnv 15 250 250 empty empty empty 20 12 0 14 -260097
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#X obj 480 -94 openpanel;
#X msg 461 -123 bang;
#X obj 460 -26 pdp_background;
#X obj 460 51 pdp_imgloader;
#X obj 460 -49 metro 40;
#X msg 479 -70 load \$1 0 0;
#X floatatom 555 -24 5 0 0 0 - - -;
#X text 507 -124 loading a pattern image;
#X text 455 -143 input 2 ( pattern );
#X obj 55 186 pdp_opencv_dft;
#X obj 462 179 pdp_opencv_dft;
#X obj -11 43 pdp_scale 320 240;
#X msg 99 156 bang;
#X msg 480 152 bang;
#X obj 191 390 pdp_xv;
#X obj 298 340 pdp_hue;
#X floatatom 298 367 5 0 0 0 - - -;
#X obj 460 81 pdp_xv;
#X obj -11 74 pdp_xv;
#X floatatom 325 254 5 0 0 0 - - -;
#X obj 189 352 pdp_xor;
#X text 425 435 <- average value of pixels;
#X text 445 461 the input image is close to the pattern;
#X obj 265 155 metro 1000;
#X obj 265 131 bng 15 250 50 0 empty empty empty 17 7 0 10 -262144
-1 -1;
#X obj 222 251 loadbang;
#X obj 300 301 pdp_binary ----------------;
#X obj 123 301 pdp_binary --------------;
#X obj 264 105 loadbang;
#X text -187 -211 pdp_opencv_dft : discrete fourier transform;
#X text -187 -197 this can be used for pattern matching;
#X obj 460 21 pdp_scale 320 240;
#X obj 460 -2 pdp_convert image/YCrCb/*;
#X obj 328 460 route 1;
#X msg 380 460 bang;
#X floatatom 383 436 5 0 0 0 - - -;
#X obj 301 460 <;
#X obj 300 386 t f b;
#X obj 347 411 f;
#X text 445 448 when it's close to its minimum;
#X obj 216 65 pdp_qt;
#X obj 249 1 metro 40;
#X msg 249 -27 bang;
#X msg 290 -27 stop;
#X obj 216 -96 openpanel;
#X msg 216 -71 open \$1;
#X msg 216 -124 bang;
#X msg 250 28 loop \$1;
#X obj 330 28 tgl 15 0 empty empty empty 17 7 0 10 -262144 -1 -1 1
1;
#X obj 330 -54 loadbang;
#X text 259 -121 playing a video file;
#X text 506 -112 ( try chini.jpg );
#X text 281 -108 ( try chini.mov );
#X obj 314 435 f 1000;
#X msg 264 65 105;
#X msg 292 65 bang;
#X msg 525 -49 1000;
#X obj 566 -51 s max;
#X obj 378 411 r max;
#X msg 284 252 60;
#X obj 80 356 pdp_xv;
#X text 369 254 Threshold the fft to eliminate noise;
#X text 369 266 60 is a godd value to eliminate noise;
#X text 369 277 and keep meaningful points;
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