path: root/pix_opencv_calibration-help.pd

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#X text 29 -9 Arguments:;
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#X text 24 -145 Class: pix_opencv;
#X text 39 -100 Description: pix_opencv_calibration is an object allowing
camera less calibration. you need to move a checkboard in front of
the camera during the calibration part.;
#X text 25 -161 Synopsis: [pix_opencv_calibration];
#X text 37 37 getting started with camera calibration :;
#X text 65 123 3 Check calibration toggle to start and move the chessboard
in front of the camera (or move the camera in front of your screen).
Your computer may slow down during searching chessboard corners. When
all corners are found it takes a snapshot (and the image will be negative)
;
#X text 65 103 2 Plug a supported camera and start rendering;
#X text 66 73 1 Print the chessboard ona rigid paperboard (or just
show it on the screen);
#X text 65 194 4 When enought chessboard have been found (20 by default)
it computes transformation matrix and map to undistord the image;
#X text 65 244 5 Then all incoming images are undistord \, you can
save the transformation and distorsion matrix to files to load it next
times;
#X text 31 287 for more information about this calibration see :;
#X text 41 327 - A flexible new technique for camera calibration \,
Zhang \, 1998 \, Microsoft Research;
#X text 41 307 - Learning Opencv \, Bradski and Kaehler \, 2008 \,
O'Reilly;
#X text 50 11 none;
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#X msg 283 161 frame 25;
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#X msg 161 189 dimen 640 560 \, create \, 1;
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#X floatatom 866 7 5 0 10000 1 frame# - -;
#X obj 827 -104 openpanel;
#X msg 827 -84 open \$1;
#X obj 815 25 pix_film;
#X msg 833 -41 auto \$1;
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1;
#X text 803 544 Create window and render;
#X msg 928 -58 colorspace RGBA;
#X msg 942 -35 colorspace RGB;
#X msg 957 -13 colorspace Grey;
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#X obj 619 197 pix_separator;
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#X obj 485 198 pix_separator;
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#X obj 485 34 pix_video;
#X obj 485 -160 gemhead;
#X msg 504 -88 dimen 640 480;
#X msg 502 -113 dimen 320 240;
#X text 681 432 load distorsion coefficients and intrinsic matrix;
#X msg 531 -18 driver v4l2;
#X msg 515 -65 driver dc1394 \, dimen 640 480 \, colorspace grey;
#X msg 540 3 driver dc1394;
#X obj 619 494 pix_opencv_calibration;
#X obj 485 165 pix_grey;
#X obj 485 236 translateXYZ 0 -2 0;
#X obj 619 236 translateXYZ 0 2 0;
#X obj 485 590 rectangle 2.666 2;
#X obj 619 590 rectangle 2.666 2;
#X msg 682 451 loadDist \$1;
#X msg 698 471 loadIntra \$1;
#X msg 652 391 writeDist \$1;
#X msg 663 413 writeIntra \$1;
#X text 651 372 write distorsion coefficients and intrinsic matrix
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#X msg 754 148 calibration \$1;
#X msg 754 192 view \$1;
#X text 793 170 number of view to take during calibration;
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#X msg 754 253 patternSize \$1 \$2;
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#X text 844 211 number of inner corners on the chessboard;
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#X msg 55 161 findChessFlag \$1 \$2 \$3;
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#X text 53 27 findChessBoardCorner option;
#X text 75 50 CV_CALIB_CB_ADAPTIVE_TRESH : adaptive threhold (default
1);
#X text 84 70 CV_CALIB_CB_NORMALIZE_IMAGE : normalize image (default
0);
#X text 135 91 CV_CALIB_CB_FILTER_QUADS: advance filtering (default
1);
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#X msg 754 292 wait \$1;
#X text 792 273 number of frame to wait between two takes during calibration
;
#X text 773 128 start callibration;
#X obj 544 166 pix_rgba;
#X obj 485 140 spigot 1;
#X text 598 66 switch source (camera / film);
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#X text 547 93 switch color mode ( grey / rgba );
#X msg 524 -41 device 1;
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#X msg 753 335 reset;
#X text 797 334 reset corrections;
#X obj 748 516 print;
#X text 784 516 print some infos;
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