{"id":54815,"date":"2020-01-05T00:00:00","date_gmt":"2020-01-04T21:00:00","guid":{"rendered":"https:\/\/prohoster.info\/blog\/blog_prohoster\/vypusk-biblioteki-kompyuternogo-zreniya-opencv-4-2"},"modified":"2020-02-18T14:02:52","modified_gmt":"2020-02-18T11:02:52","slug":"vypusk-biblioteki-kompyuternogo-zreniya-opencv-4-2","status":"publish","type":"post","link":"https:\/\/prohoster.info\/nl\/blog\/news\/vypusk-biblioteki-kompyuternogo-zreniya-opencv-4-2","title":{"rendered":"Uitgave van de computer vision bibliotheek OpenCV 4.2","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><noindex><a rel=\"nofollow\" href=\"https:\/\/opencv.org\/opencv-4-2-0\/\">Heeft plaatsgevonden<\/a><\/noindex> de release van de open-source bibliotheek <noindex><a rel=\"nofollow\" href=\"http:\/\/opencv.org\/\">OpenCV 4.2<\/a><\/noindex> (Open Source Computer Vision Library), die middelen biedt voor de verwerking en analyse van beeldinhoud. OpenCV biedt meer dan 2500 algoritmen, zowel klassieke als de nieuwste innovaties op het gebied van computer vision en machine learning systemen. De code van de bibliotheek is geschreven in C++ en <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/opencv\/opencv\/\">wordt verspreid<\/a><\/noindex> onder BSD-licentie. Bindingen zijn voorbereid voor verschillende programmeertalen, waaronder Python, MATLAB en Java.<\/p>\n<p>De bibliotheek kan worden gebruikt voor het herkennen van objecten op foto's en video's (bijvoorbeeld gezichts- en figuurherkenning, tekst, enz.), het volgen van object- en camerabeweging, het classificeren van acties in video's, het transformeren van afbeeldingen, het extraheren van 3D-modellen, het cre\u00ebren van 3D-ruimte uit beelden van stereocamera's, het genereren van hoogwaardige beelden door het samenvoegen van lagere kwaliteit beelden, het zoeken naar objecten op een afbeelding die lijken op een gegeven set elementen, het toepassen van machine learning-methoden, het plaatsen van markers, het identificeren van gemeenschappelijke elementen in verschillende beelden, en het automatisch corrigeren van defecten, zoals het rode-oog effect.<\/p>\n<p>In <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/opencv\/opencv\/wiki\/ChangeLog#version420\">in de<\/a><\/noindex> <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/opencv\/opencv\/releases\/tag\/4.2.0\">nieuwe release<\/a><\/noindex>:<\/p>\n<ul>\n<li class=\"l\"> In de DNN-module (Deep Neural Network) met implementaties van machine learning-algoritmen op basis van neurale netwerken is een backend toegevoegd voor het gebruik van CUDA en experimentele ondersteuning voor de API <noindex><a rel=\"nofollow\" href=\"http:\/\/docs.openvinotoolkit.org\/\">nGraph OpenVINO<\/a><\/noindex>;\n<li class=\"l\"> Met behulp van SIMD-instructies is de prestatie van de code voor stereoweergave (StereoBM\/StereoSGBM), schaling, maskeren, draaien, het berekenen van ontbrekende kleurcomponenten en vele andere bewerkingen geoptimaliseerd;\n<li class=\"l\"> Er is een multithreaded implementatie van de functie <noindex><a rel=\"nofollow\" href=\"https:\/\/docs.opencv.org\/3.4\/d4\/d86\/group__imgproc__filter.html#gaf9bba239dfca11654cb7f50f889fc2ff\">pyrDown<\/a><\/noindex>;\n<li class=\"l\"> De mogelijkheid is toegevoegd om videostreams uit mediacontainers (demuxing) te extraheren met behulp van de videoio backend op basis van FFmpeg;\n<li class=\"l\"> Een algoritme is toegevoegd voor snelle frequentie-selectieve reconstructie van beschadigde beelden <noindex><a rel=\"nofollow\" href=\"https:\/\/docs.opencv.org\/4.2.0\/dc\/d2f\/tutorial_xphoto_inpainting.html\">FSR<\/a><\/noindex> (Frequency Selective Reconstruction);\n<li class=\"l\"> De methode <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/opencv\/opencv_contrib\/pull\/2367\">RIC<\/a><\/noindex> voor de interpolatie van typische lege gebieden;\n<li class=\"l\"> Een methode voor het normaliseren van afwijkingen is toegevoegd <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/short-circuitt\/LOGOS\">LOGOS<\/a><\/noindex>;\n<li class=\"l\"> In de G-API-module (opencv_gapi), die de functies van de engine uitvoert voor effici\u00ebnte beeldverwerking met behulp van op grafen gebaseerde algoritmen, is ondersteuning voor complexere hybride algoritmen voor computer vision en diepgaand machine learning ge\u00efmplementeerd. Ondersteuning voor de backend Intel Inference Engine is verzekerd. Ondersteuning voor de verwerking van videostreams is aan het uitvoermodel toegevoegd;\n<li class=\"l\"> Opgeheven <noindex><a rel=\"nofollow\" href=\"https:\/\/blog.talosintelligence.com\/2020\/01\/opencv-buffer-overflow-jan-2020.html\">kwetsbaarheden<\/a><\/noindex>  (<noindex><a rel=\"nofollow\" href=\"https:\/\/www.talosintelligence.com\/vulnerability_reports\/TALOS-2019-0852\">CVE-2019-5063<\/a><\/noindex>, <noindex><a rel=\"nofollow\" href=\"https:\/\/www.talosintelligence.com\/vulnerability_reports\/TALOS-2019-0853\">CVE-2019-5064<\/a><\/noindex>), die mogelijk kunnen leiden tot de uitvoering van aanvallerscode bij de verwerking van niet-gecontroleerde gegevens in de formaten XML, YAML en JSON. Als tijdens het parseren van JSON een symbool met een nulcode wordt aangetroffen, wordt de waarde volledig in de buffer gekopieerd, maar zonder voldoende controle op bufferoverschrijding.\n<\/ul>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Bron: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=52134\">opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0421\u043e\u0441\u0442\u043e\u044f\u043b\u0441\u044f \u0440\u0435\u043b\u0438\u0437 \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0439 \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0438 OpenCV 4.2 (Open Source Computer Vision Library), \u043f\u0440\u0435\u0434\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u044e\u0449\u0435\u0439 \u0441\u0440\u0435\u0434\u0441\u0442\u0432\u0430 \u0434\u043b\u044f \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u0438 \u0430\u043d\u0430\u043b\u0438\u0437\u0430 \u0441\u043e\u0434\u0435\u0440\u0436\u0438\u043c\u043e\u0433\u043e \u0438\u0437\u043e\u0431\u0440\u0430\u0436\u0435\u043d\u0438\u0439. OpenCV \u043f\u0440\u0435\u0434\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 \u0431\u043e\u043b\u0435\u0435 2500 \u0430\u043b\u0433\u043e\u0440\u0438\u0442\u043c\u043e\u0432, \u043a\u0430\u043a \u043a\u043b\u0430\u0441\u0441\u0438\u0447\u0435\u0441\u043a\u0438\u0445, \u0442\u0430\u043a \u0438 \u043e\u0442\u0440\u0430\u0436\u0430\u044e\u0449\u0438\u0445 \u043f\u043e\u0441\u043b\u0435\u0434\u043d\u0438\u0435 \u0434\u043e\u0441\u0442\u0438\u0436\u0435\u043d\u0438\u044f \u0432 \u043e\u0431\u043b\u0430\u0441\u0442\u0438 \u043a\u043e\u043c\u043f\u044c\u044e\u0442\u0435\u0440\u043d\u043e\u0433\u043e \u0437\u0440\u0435\u043d\u0438\u044f \u0438 \u0441\u0438\u0441\u0442\u0435\u043c \u043c\u0430\u0448\u0438\u043d\u043d\u043e\u0433\u043e \u043e\u0431\u0443\u0447\u0435\u043d\u0438\u044f. \u041a\u043e\u0434 \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0438 \u043d\u0430\u043f\u0438\u0441\u0430\u043d \u043d\u0430 \u044f\u0437\u044b\u043a\u0435 \u0421++ \u0438 \u0440\u0430\u0441\u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u044f\u0435\u0442\u0441\u044f \u043f\u043e\u0434 \u043b\u0438\u0446\u0435\u043d\u0437\u0438\u0435\u0439 BSD. \u0411\u0438\u043d\u0434\u0438\u043d\u0433\u0438 \u043f\u043e\u0434\u0433\u043e\u0442\u043e\u0432\u043b\u0435\u043d\u044b \u0434\u043b\u044f \u0440\u0430\u0437\u043b\u0438\u0447\u043d\u044b\u0445 \u044f\u0437\u044b\u043a\u043e\u0432 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-54815","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0421\u043e\u0441\u0442\u043e\u044f\u043b\u0441\u044f \u0440\u0435\u043b\u0438\u0437 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