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In-house QR codes decoding #24299 ### Pull Request Readiness Checklist QR codes decoding pipeline without 3rdparty dependency (Quirc library). Implemented according to standard https://github.com/yansikeim/QR-Code/blob/master/ISO%20IEC%2018004%202015%20Standard.pdf **Merge with extra**: https://github.com/opencv/opencv_extra/pull/1124 resolves https://github.com/opencv/opencv/issues/24225 resolves https://github.com/opencv/opencv/issues/17290 resolves https://github.com/opencv/opencv/issues/24318 https://github.com/opencv/opencv/issues/24346 Resources: * https://en.wikiversity.org/wiki/Reed%E2%80%93Solomon_codes_for_coders * https://en.wikipedia.org/wiki/Berlekamp%E2%80%93Massey_algorithm ``` Geometric mean (ms) Name of Test quirc new2 new2 vs quirc (x-factor) decode::Perf_Objdetect_Not_QRCode::("chessboard", 640x480) 9.151 9.157 1.00 decode::Perf_Objdetect_Not_QRCode::("chessboard", 1280x720) 21.609 21.609 1.00 decode::Perf_Objdetect_Not_QRCode::("chessboard", 1920x1080) 42.088 41.924 1.00 decode::Perf_Objdetect_Not_QRCode::("chessboard", 3840x2160) 169.737 169.050 1.00 decode::Perf_Objdetect_Not_QRCode::("random", 640x480) 8.552 8.611 0.99 decode::Perf_Objdetect_Not_QRCode::("random", 1280x720) 21.264 21.581 0.99 decode::Perf_Objdetect_Not_QRCode::("random", 1920x1080) 42.415 43.468 0.98 decode::Perf_Objdetect_Not_QRCode::("random", 3840x2160) 175.003 174.294 1.00 decode::Perf_Objdetect_Not_QRCode::("zero", 640x480) 8.528 8.421 1.01 decode::Perf_Objdetect_Not_QRCode::("zero", 1280x720) 21.548 21.209 1.02 decode::Perf_Objdetect_Not_QRCode::("zero", 1920x1080) 42.581 42.529 1.00 decode::Perf_Objdetect_Not_QRCode::("zero", 3840x2160) 176.231 174.410 1.01 decode::Perf_Objdetect_QRCode::"kanji.jpg" 6.105 6.072 1.01 decode::Perf_Objdetect_QRCode::"link_github_ocv.jpg" 6.069 6.076 1.00 decode::Perf_Objdetect_QRCode::"link_ocv.jpg" 6.143 6.240 0.98 decode::Perf_Objdetect_QRCode::"link_wiki_cv.jpg" 6.369 6.420 0.99 decode::Perf_Objdetect_QRCode::"russian.jpg" 6.558 6.549 1.00 decode::Perf_Objdetect_QRCode::"version_1_down.jpg" 5.634 5.621 1.00 decode::Perf_Objdetect_QRCode::"version_1_left.jpg" 5.560 5.609 0.99 decode::Perf_Objdetect_QRCode::"version_1_right.jpg" 5.539 5.631 0.98 decode::Perf_Objdetect_QRCode::"version_1_top.jpg" 5.622 5.566 1.01 decode::Perf_Objdetect_QRCode::"version_1_up.jpg" 5.569 5.534 1.01 decode::Perf_Objdetect_QRCode::"version_5_down.jpg" 6.514 6.436 1.01 decode::Perf_Objdetect_QRCode::"version_5_left.jpg" 6.668 6.479 1.03 decode::Perf_Objdetect_QRCode::"version_5_top.jpg" 6.481 6.484 1.00 decode::Perf_Objdetect_QRCode::"version_5_up.jpg" 7.011 6.513 1.08 decodeMulti::Perf_Objdetect_QRCode_Multi::("2_qrcodes.png", "aruco_based") 14.885 15.089 0.99 decodeMulti::Perf_Objdetect_QRCode_Multi::("2_qrcodes.png", "contours_based") 14.896 14.906 1.00 decodeMulti::Perf_Objdetect_QRCode_Multi::("3_close_qrcodes.png", "aruco_based") 6.661 6.663 1.00 decodeMulti::Perf_Objdetect_QRCode_Multi::("3_close_qrcodes.png", "contours_based") 6.614 6.592 1.00 decodeMulti::Perf_Objdetect_QRCode_Multi::("3_qrcodes.png", "aruco_based") 14.814 14.592 1.02 decodeMulti::Perf_Objdetect_QRCode_Multi::("3_qrcodes.png", "contours_based") 15.245 15.135 1.01 decodeMulti::Perf_Objdetect_QRCode_Multi::("4_qrcodes.png", "aruco_based") 10.923 10.881 1.00 decodeMulti::Perf_Objdetect_QRCode_Multi::("4_qrcodes.png", "contours_based") 10.680 10.128 1.05 decodeMulti::Perf_Objdetect_QRCode_Multi::("5_qrcodes.png", "contours_based") 11.788 11.576 1.02 decodeMulti::Perf_Objdetect_QRCode_Multi::("6_qrcodes.png", "aruco_based") 25.887 25.979 1.00 decodeMulti::Perf_Objdetect_QRCode_Multi::("6_qrcodes.png", "contours_based") 26.183 25.627 1.02 decodeMulti::Perf_Objdetect_QRCode_Multi::("7_qrcodes.png", "aruco_based") 32.786 32.253 1.02 decodeMulti::Perf_Objdetect_QRCode_Multi::("7_qrcodes.png", "contours_based") 24.290 24.435 0.99 decodeMulti::Perf_Objdetect_QRCode_Multi::("8_close_qrcodes.png", "aruco_based") 89.696 89.247 1.01 decodeMulti::Perf_Objdetect_QRCode_Multi::("8_close_qrcodes.png", "contours_based") 89.872 89.600 1.00 ``` |
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| .. | ||
| build_js.py | ||
| opencv_js.config.py | ||
| README.md | ||
Building OpenCV.js by Emscripten
Download and install Emscripten.
Execute build_js.py script:
emcmake python <opencv_src_dir>/platforms/js/build_js.py <build_dir>
If everything is fine, a few minutes later you will get <build_dir>/bin/opencv.js. You can add this into your web pages.
Find out more build options by -h switch.
For detailed build tutorial, check out <opencv_src_dir>/doc/js_tutorials/js_setup/js_setup/js_setup.markdown.