path: root/help/pix_opencv_contours-help.pd

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#X declare -lib pix_opencv;
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#X text 13 315 Inlets:;
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#X text 20 266 Arguments:;
#X text 12 436 Outlets:;
#X text 478 20 Example:;
#X text 58 21 Class: pix_opencv;
#X text 11 60 Description: finds contours;
#X text 66 276 none;
#X text 30 349 Inlet 1: message: epsilon [float];
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#X msg 67 70 set destroy;
#X msg 142 68 set create;
#X msg 198 112 destroy;
#X msg 132 132 reset \, dimen 640 480 \, create \, 1;
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#X restore 358 354 pd gemwin;
#X msg 358 335 destroy;
#X text 354 314 Create window:;
#X text 30 329 Inlet 1: binarized image;
#X text 30 589 <number of segments> <2> <x \, y corner coordinate pairs>
;
#X text 25 447 Outlet 1: gemlist output;
#X text 37 5 Synopsis: [pix_opencv_contours];
#X text 21 578 contour (for each of them);
#X text 37 75 [pix_opencv_contours] finds contours in incomming image
\, simplifies it according to the epsilon value and outputs contours
with area greater than a threshold.;
#X text 30 339 Inlet 1: message: area threshold [float];
#X text 25 457 Outlet 2: contour \, convexhull and convexity defect
output;
#X text 37 126 contrary to [pix_opencv_contour_convexhull] \, [pix_opencv_contours]
outputs all contours found not only the biggest.;
#X text 37 175 it can also output rotated bounding rectangle \, convexhull
and cenvexity defects;
#X text 37 215 you can choose the hierarchy level of output contour
;
#X text 37 235 so this external replaces all old pix_opencv_contours_*
;
#X text 30 619 <number of segments> <2> <x \, y corner coordinate pairs>
;
#X text 21 606 convexhull (for each contour);
#X text 20 637 convexixitydefects (for each contour);
#X text 30 649 <number of segments> <7> <start point (2 floats)> <end
point (2 floats)> <depth point (2 floats)> depth;
#X text 26 699 by antoine villeret - 2012;
#X text 16 719 bug \, feedback \, comment... on the pd-list;
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#X obj 541 171 rectangle 5.333 4;
#X obj 514 116 t a a;
#X msg 617 214 area \$1;
#X floatatom 617 197 5 0 0 0 - - -, f 5;
#X msg 659 142 10;
#X msg 625 141 2;
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#X obj 71 506 GEMglVertex2d;
#X obj 71 586 GEMglVertex2d;
#X obj 71 666 GEMglVertex2d;
#X obj 71 746 GEMglVertex2d;
#X obj 71 766 GEMglEnd;
#X obj 71 277 alpha;
#X obj 143 178 list split 1;
#X obj 71 420 GEMglBegin GL_LINE_LOOP;
#X obj 177 198 list split 8;
#X msg 363 324 0 0 0 0 0 0 0 0;
#X obj 32 -8 inlet INFO;
#X obj 71 256 gemhead;
#X obj 15 147 loadbang;
#X msg 15 168 0;
#X obj 71 52 t b a b;
#X obj 211 504 list split 2;
#X obj 177 448 list split 2;
#X obj 137 472 unpack;
#X obj 211 525 unpack;
#X obj 245 564 list split 2;
#X obj 245 585 unpack;
#X obj 279 664 list split 2;
#X obj 279 685 unpack;
#X obj 90 84 list split 2;
#X obj 95 154 list append;
#X obj 292 81 t b;
#X obj 32 32 route 0;
#X floatatom 342 463 5 0 0 0 - - -, f 5;
#X obj 342 442 list length;
#X obj 71 400 GEMglLineWidth 1;
#X obj 71 327 translateXYZ -5.3333 4 0;
#X obj 71 361 scaleXYZ 10.6666 -8 0;
#X obj 124 107 list split 20;
#X obj 71 302 color 1 1 0 1;
#X obj 124 128 t b b a;
#X obj 32 13 route info;
#X connect 0 0 1 0;
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#X restore 658 323 pd draw_rotrect;
#X obj 487 240 pix_opencv_contours;
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#X obj 210 116 list split 2;
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#X text 519 123 dot product;
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#X msg 343 68 0 1 1 1 0.5 0.5;
#X obj 219 124 expr abs(($f3-$f1)*($f6-$f2)+($f4-$f2)*($f5-$f1));
#X obj 302 158 expr $f1*sqrt(10.666*8);
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#X msg 240 451 \$5;
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#X obj 191 556 circle 0.01;
#X msg 204 530 draw line;
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#X restore 542 294 pd drawdefects;
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#X obj 57 147 tgl 15 1 empty empty empty 17 7 0 10 -262144 -1 -1 1
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#X msg 57 167 contours \$1;
#X obj 57 251 outlet;
#X obj 147 147 tgl 15 1 empty empty empty 17 7 0 10 -262144 -1 -1 0
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#X obj 247 147 tgl 15 1 empty empty empty 17 7 0 10 -262144 -1 -1 0
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#X msg 147 167 convexhulls \$1;
#X msg 247 167 convexitydefects \$1;
#X text 25 37 set hierarchy level (which contour to send out);
#X obj 24 83 nbx 5 14 -2 1e+37 0 1 empty empty empty 0 -8 0 10 -262144
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#X msg 24 100 hierarchy_level \$1;
#X text 71 125 send out different kind of infos (all on by default)
:;
#X text 25 47 -1 for all contours (default);
#X msg 559 168 settab drawX drawY drawZ;
#X obj 558 200 tgl 15 0 empty empty empty 17 7 0 10 -262144 -1 -1 0
1;
#X msg 558 229 taboutput \$1;
#X text 550 71 first set some tables (they are dynamically resized)
;
#X text 550 151 tell it what tables to use;
#X text 582 200 enable disable table output (automatically enable when
ou set table);
#X text 569 256 see [pd draw_contour_gemvertexbuffer] for an example
of drawing contours;
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#X obj 175 173 loadbang;
#X obj 135 65 translateXYZ -0.5 -0.5 0;
#X obj 135 42 scaleXYZ 10.6666 -8 1;
#X obj 135 87 t a b;
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#X obj 135 17 alpha 0;
#X msg 161 130 posX drawX \, posY drawY \, colorG drawZ \, colorA drawZ
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#X msg 175 193 draw line;
#X obj 135 245 gemvertexbuffer;
#X obj 161 108 inlet;
#X obj 269 174 r point_number;
#X msg 269 201 resize \$1;
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#X restore 797 147 pd draw_contour_gemvertexbuffer;
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#X text 813 127 draw with gemvertexbuffer;
#X msg 379 80 repeat_point \$1;
#X floatatom 379 62 5 0 0 0 - - -, f 5;
#X text 348 47 repeat the first point n times;
#X msg 383 167 cvblobOutput \$1;
#X obj 383 148 tgl 15 0 empty empty empty 17 7 0 10 -262144 -1 -1 0
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#X text 25 57 -2 for only contours with no child (aka holes);
#X obj 564 89 table drawX 1000;
#X obj 564 109 table drawY 1000;
#X obj 564 129 table drawZ 1000;
#X text 543 5 to improve performance and avoid "stack overflow" (because
contours could have a huge number of points) you can use table output
instead of list output;
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#X restore 674 213 pd options;
#X text 489 347 color legend :;
#X text 522 364 yellow = bounding box;
#X text 528 374 green = contour;
#X text 534 385 blue = convexhull;
#X text 534 397 pink = convexhull edge with defects;
#X text 540 409 red = farthest point from convexhull;
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#X obj 178 132 list split 2;
#X obj 170 593 GEMglEnd;
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#X obj 212 263 list append;
#X obj 241 237 t b a;
#X obj 241 216 list split 2;
#X obj 341 495 unpack;
#X obj 310 257 t b a;
#X obj -101 364 color 1 0 0 1;
#X obj 405 545 * -8;
#X obj 405 565 + 4;
#X obj -101 422 GEMglLineWidth 2;
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#X obj 170 564 gemlist;
#X obj 300 421 gemlist;
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#X msg -62 208 0;
#X obj 133 161 unpack 0 0;
#X floatatom 133 182 5 0 0 0 nb_of_segments - -, f 5;
#X obj 107 -65 inlet CONTOUR;
#X obj -101 334 gemlist;
#X obj 212 159 t b a b b;
#X obj 106 -44 route convexhull contour convexitydefects;
#X obj 187 1 t a b;
#X msg -17 320 0 0 1 1;
#X msg -25 299 0 1 0 1;
#X obj 106 0 t a b;
#X obj 268 1 list split 2;
#X obj 290 96 list append;
#X obj 319 76 t b a;
#X obj 302 28 t b a b b;
#X obj 268 -19 t a b;
#X msg -7 340 1 0 1 1;
#X obj 319 55 list split 7;
#X obj 346 116 list split 4;
#X obj -101 459 GEMglBegin GL_LINE_LOOP;
#X obj -115 -62 inlet;
#X obj -115 -40 t a a a;
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#X connect 35 1 30 1;
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#X connect 37 0 15 1;
#X connect 38 0 39 0;
#X connect 39 0 22 1;
#X restore 504 513 pd draw_contours;
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#X obj 225 16 inlet;
#X obj 225 67 list split 2;
#X obj 259 137 list split 20;
#X text 309 70 cut matrix header;
#X text 346 98 cut infos for the 1st contour;
#X text -55 294 rotated rectangle center point (normalized);
#X obj 211 224 list split 2;
#X obj 245 314 unpack;
#X floatatom 245 334 5 0 0 0 - - -, f 5;
#X floatatom 278 334 5 0 0 0 - - -, f 5;
#X obj 245 244 list split 2;
#X text 29 334 rotated rectangle size (normalized);
#X obj 313 384 list split 8;
#X floatatom 304 -37 5 0 0 0 - - -, f 5;
#X obj 304 -18 * 20;
#X obj 304 4 + 2;
#X text 284 -55 selected contour;
#X obj 116 96 unpack;
#X floatatom 116 117 5 0 0 0 - - -, f 5;
#X floatatom 149 138 5 0 0 0 - - -, f 5;
#X text -52 114 number of detected contours;
#X text -61 137 numbers of values for each contour;
#X obj 313 404 list prepend set;
#X obj 313 424 list trim;
#X msg 54 513 0.681584 0.808552 0.679688 0.789583 0.704353 0.785198
0.70625 0.804167;
#X text 59 495 rotrect corners coordinates;
#X obj 570 153 list split 20;
#X obj 570 175 t b a;
#X obj 617 222 list;
#X msg 597 259 \$15;
#X obj 597 281 +;
#X obj 625 281 f;
#X msg 620 122 0;
#X obj 582 303 f;
#X obj 551 119 t b a b;
#X floatatom 582 325 5 0 0 0 - - -, f 5;
#X text 445 323 total number of points;
#X obj 177 194 list split 1;
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#X floatatom 177 223 5 0 0 0 - - -, f 5;
#X text 24 223 id in the detection order;
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#X text 30 408 rotated rectangle angle (degrees);
#X obj 279 364 list split 2;
#X obj 211 274 unpack;
#X floatatom 211 294 5 0 0 0 - - -, f 5;
#X floatatom 244 294 5 0 0 0 - - -, f 5;
#X obj 240 387 unpack;
#X floatatom 240 407 5 0 0 0 - - -, f 5;
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#X floatatom 240 437 5 0 0 0 - - -, f 5;
#X text 30 438 area in % of image area;
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#X floatatom 347 595 5 0 0 0 - - -, f 5;
#X floatatom 381 615 5 0 0 0 - - -, f 5;
#X text 203 614 length of contour (in pixels);
#X text 247 595 number of points;
#X obj 347 575 unpack f f;
#X obj 225 38 route cvblob count;
#X obj 736 107 unpack f f;
#X floatatom 736 129 5 0 0 0 - - -, f 5;
#X floatatom 793 130 5 0 0 0 - - -, f 5;
#X obj 776 195 s point_number;
#X text 723 144 contours;
#X text 797 145 points;
#X text 690 160 total counts of contours and points;
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#X connect 64 1 67 0;
#X restore 675 294 pd info;
#X text 29 498 <num of contour> 20 <contour area> <rotrect corners
coordinates (8 floats)> <rotrect center position (2 floats)> <rotrect
size (2 floats)> <angle in degrees> <number of points> <contour length>
0 0 0 0;
#X obj 554 32 tgl 15 0 empty empty empty 17 7 0 10 -262144 -1 -1 0
1;
#X text 30 369 Inlet 1: message: contours <0|1>;
#X text 30 379 Inlet 1: message: convexhull <0|1>;
#X text 30 389 Inlet 1: message: convexitydefects <0|1>;
#X text 30 399 Inlet 1: message: settab tabname1 tabname2 tabname3
;
#X text 30 409 Inlet 1: message: taboutput <0|1>;
#X text 30 359 Inlet 1: message: hierarchy_level [float];
#X obj 514 96 pix_image examples/dessin.tif;
#N canvas 865 237 931 731 cvblob 0;
#X obj 87 321 gemlist;
#X obj 87 301 t b a;
#X obj 328 306 list append;
#X obj 323 198 list split 2;
#X obj 323 142 list append;
#X obj 99 108 t b a;
#X obj 357 280 t b a;
#X obj 87 511 translateXYZ;
#X msg 228 354 \$2;
#X obj 87 361 alpha 1;
#X obj 87 471 translateXYZ -0.5 -0.5 0;
#X obj 87 535 scaleXYZ 0.125 0.25 0;
#X msg 267 354 \$3;
#X msg 242 468 \$4;
#X obj 271 333 t a a;
#X obj 87 581 circle 0.5;
#X obj 87 431 color 1 0 0 0.2;
#X obj 87 341 separator;
#X msg 307 504 \$1;
#X obj 87 621 color 1 1 0 1;
#X obj 357 246 list split 6;
#X msg 426 194 \$2;
#X obj 174 627 loadbang;
#X msg 174 646 12;
#X msg 329 382 \$6;
#X obj 329 404 > 0;
#X obj 329 425 sel 1 0;
#X msg 328 446 1 0 0 0.2;
#X msg 348 466 0 1 0 0.2;
#X obj 87 601 translateXYZ 0.2 0.2 0;
#X text 547 280 here is an example on how to display blobs with Gem
;
#X obj 87 451 scaleXYZ 10.666 -8 0;
#X obj 87 682 text2d;
#X text 452 195 <- be careful ! the size of the cvblob matrix could
change;
#X text 534 212 please check second element to gets matrix width (number
of value per blob);
#X obj 323 164 t a a;
#X obj 386 11 inlet cvblob;
#X obj 386 33 route cvblob;
#X obj 240 490 sqrt;
#X obj 99 83 spigot;
#X obj 386 55 t a a;
#X msg 413 77 \$1;
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#X connect 20 1 2 1;
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#X connect 23 0 32 1;
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#X connect 26 0 27 0;
#X connect 26 1 28 0;
#X connect 27 0 16 1;
#X connect 28 0 16 1;
#X connect 29 0 19 0;
#X connect 31 0 10 0;
#X connect 35 0 3 0;
#X connect 35 1 21 0;
#X connect 36 0 37 0;
#X connect 37 0 40 0;
#X connect 38 0 11 1;
#X connect 38 0 11 2;
#X connect 39 0 5 0;
#X connect 40 0 4 1;
#X connect 40 1 41 0;
#X connect 41 0 42 0;
#X connect 41 0 39 1;
#X connect 43 0 39 0;
#X restore 664 365 pd cvblob;
#X text 506 492 WARNING ! this crashes;
#X text 20 488 cvblob;
#X text 25 467 Outlet 3: info output;
#X text 20 558 count <number of contour> <total number of point>;
#X text 612 516 fix me !;
#X obj 487 171 pix_rgba;
#X obj 487 141 pix_video;
#X obj 532 603 declare -lib pix_opencv;
#X connect 13 0 14 0;
#X connect 14 0 13 0;
#X connect 35 0 41 0;
#X connect 36 0 75 0;
#X connect 36 1 67 0;
#X connect 37 0 36 0;
#X connect 38 0 48 0;
#X connect 39 0 38 0;
#X connect 40 0 46 0;
#X connect 40 0 45 0;
#X connect 42 0 75 0;
#X connect 42 1 35 0;
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#X connect 44 0 43 0;
#X connect 45 0 44 0;
#X connect 46 0 39 0;
#X connect 48 0 68 0;
#X connect 48 1 49 0;
#X connect 48 2 68 1;
#X connect 48 2 47 0;
#X connect 48 2 58 0;
#X connect 50 0 48 0;
#X connect 60 0 37 0;
#X connect 67 0 42 0;
#X connect 74 0 48 0;
#X connect 75 0 74 0;