use mutiplication of result

svn path=/trunk/externals/pdp_opencv/; revision=11784

1 files changed, 118 insertions, 101 deletions

diff --git a/pdp_opencv_dft-help.pd b/pdp_opencv_dft-help.pd
index a9ce5d8..e4a86fe 100755
--- a/pdp_opencv_dft-help.pd
+++ b/pdp_opencv_dft-help.pd
@@ -19,49 +19,24 @@
 #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
+#X obj 440 -146 cnv 15 250 250 empty empty empty 20 12 0 14 -260097
 -66577 0;
-#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 473 -94 openpanel;
+#X msg 454 -123 bang;
+#X obj 453 -26 pdp_background;
+#X obj 453 51 pdp_imgloader;
+#X obj 453 -49 metro 40;
+#X msg 472 -70 load \$1 0 0;
+#X floatatom 548 -24 5 0 0 0 - - -;
+#X text 500 -124 loading a pattern image;
+#X text 448 -143 input 2 ( pattern );
 #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 453 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 453 21 pdp_scale 320 240;
+#X obj 453 -2 pdp_convert image/YCrCb/*;
 #X obj 216 65 pdp_qt;
 #X obj 249 1 metro 40;
 #X msg 249 -27 bang;
@@ -73,87 +48,129 @@
 #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 text 267 -123 playing a video file;
+#X text 499 -112 ( try chini.jpg );
+#X text 285 -110 ( try chini.mov );
 #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;
+#X obj 559 -51 s max;
+#X msg 518 -49 0;
+#X obj -189 109 cnv 15 880 150 empty empty empty 20 12 0 14 -258113
+-66577 0;
+#X obj -53 212 pdp_opencv_dft;
+#X obj 215 206 pdp_opencv_dft;
+#X msg -25 178 bang;
+#X msg 206 175 bang;
+#X obj 114 164 metro 1000;
+#X obj 114 140 bng 15 250 50 0 empty empty empty 17 7 0 10 -262144
+-1 -1;
+#X obj 113 114 loadbang;
+#X text 302 185 <-- Calculate Discrete Fourier Transform of the pattern
+;
+#X text 324 196 pdp_opencv_dft is too greedy to be calculayed for every
+;
+#X text 322 209 frame so it is just processed when it receives a bang
+;
+#X obj -187 267 cnv 15 880 180 empty empty empty 20 12 0 14 -4034 -66577
+0;
+#X obj 1 381 pdp_xv;
+#X obj 108 331 pdp_hue;
+#X floatatom 108 358 5 0 0 0 - - -;
+#X floatatom 132 271 5 0 0 0 - - -;
+#X obj 36 269 loadbang;
+#X obj 110 292 pdp_binary ----------------;
+#X obj -67 292 pdp_binary --------------;
+#X floatatom 160 378 5 0 0 0 - - -;
+#X msg 97 269 60;
+#X obj -1 343 pdp_mul;
+#X text 220 390 when it's close to its maximum;
+#X text 310 307 60 is a good value to eliminate noise;
+#X text 312 319 while keeping meaningful points;
+#X text 286 295 <-- Threshold the fft to eliminate noise;
+#X text 458 116 processing discrete fourier transform;
+#X text 485 270 analyzing/comparing dft outputs;
+#X text -115 343 multiply dfts -->;
+#X text 201 377 <- average value of dft(i1) x dft(i2);
+#X text 221 403 the input image the closest to the pattern;
+#N canvas 10 73 450 300 cmax 0;
+#X obj 70 144 route 1;
+#X msg 122 144 bang;
+#X obj 42 70 t f b;
+#X obj 89 95 f;
+#X obj 120 95 r max;
+#X obj 43 144 >;
+#X obj 56 119 f 0;
+#X obj 45 44 inlet;
+#X obj 73 180 outlet;
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