{"id":36102,"date":"2019-10-31T22:09:38","date_gmt":"2019-10-31T19:09:38","guid":{"rendered":"https:\/\/prohoster.info\/blog\/reliz-sistemy-raspoznavaniya-teksta-tesseract-4-1\/"},"modified":"2019-10-31T22:09:38","modified_gmt":"2019-10-31T19:09:38","slug":"reliz-sistemy-raspoznavaniya-teksta-tesseract-4-1","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/news\/reliz-sistemy-raspoznavaniya-teksta-tesseract-4-1","title":{"rendered":"Vyd\u00e1n\u00ed syst\u00e9mu rozpozn\u00e1v\u00e1n\u00ed textu Tesseract 4.1","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><noindex><a rel=\"nofollow\" href=\"https:\/\/groups.google.com\/forum\/#!topic\/tesseract-ocr\/oKtTOIGIMaM\">P\u0159ipravena<\/a><\/noindex> uvoln\u011bn\u00ed syst\u00e9mu optick\u00e9ho rozpozn\u00e1v\u00e1n\u00ed textu <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/tesseract-ocr\/tesseract\/\">Tesseract 4.1<\/a><\/noindex>, podporuj\u00edc\u00ed rozpozn\u00e1v\u00e1n\u00ed znak\u016f UTF-8 a text\u016f ve v\u00edce ne\u017e 100 jazyc\u00edch v\u010detn\u011b ru\u0161tiny, kaza\u0161tiny, b\u011bloru\u0161tiny a ukrajin\u0161tiny. V\u00fdsledek lze ukl\u00e1dat jak jako prost\u00fd text, tak ve form\u00e1tech HTML (hOCR), ALTO (XML), PDF a TSV. Syst\u00e9m byl p\u016fvodn\u011b vytvo\u0159en v letech 1985-1995 v laborato\u0159i spole\u010dnosti Hewlett Packard, v roce 2005 byl k\u00f3d uvoln\u011bn pod licenc\u00ed Apache a od t\u00e9 doby byl d\u00e1le rozv\u00edjen za \u00fa\u010dasti zam\u011bstnanc\u016f spole\u010dnosti Google. P\u016fvodn\u00ed texty projektu <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/tesseract-ocr\/tesseract\">se distribuj\u00ed<\/a><\/noindex> pod licenc\u00ed Apache 2.0.<\/p>\n<p> Tesseract zahrnuje konzolovou utilitu a knihovnu libtesseract pro integraci funkc\u00ed rozpozn\u00e1v\u00e1n\u00ed textu do jin\u00fdch aplikac\u00ed. Mezi podporovan\u00e9 extern\u00ed <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/tesseract-ocr\/tesseract\/wiki\/User-Projects-%E2%80%93-3rdParty\">GUI rozhran\u00ed<\/a><\/noindex> lze zm\u00ednit <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/manisandro\/gImageReader\">gImageReader<\/a><\/noindex>, <noindex><a rel=\"nofollow\" href=\"http:\/\/vietocr.sourceforge.net\/\">VietOCR<\/a><\/noindex> a <noindex><a rel=\"nofollow\" href=\"https:\/\/sourceforge.net\/projects\/yagf-ocr\/\">YAGF<\/a><\/noindex>. K dispozici jsou dva rozpozn\u00e1vac\u00ed enginy: klasick\u00fd, rozpozn\u00e1vaj\u00edc\u00ed text na \u00farovni vzor\u016f jednotliv\u00fdch znak\u016f, a nov\u00fd, zalo\u017een\u00fd na aplikaci syst\u00e9mu strojov\u00e9ho u\u010den\u00ed s pou\u017eit\u00edm rekurentn\u00ed neuronov\u00e9 s\u00edt\u011b LSTM, optimalizovan\u00e9 pro rozpozn\u00e1v\u00e1n\u00ed cel\u00fdch \u0159\u00e1dk\u016f a umo\u017e\u0148uj\u00edc\u00ed v\u00fdrazn\u00e9 zv\u00fd\u0161en\u00ed p\u0159esnosti. Hotov\u00e9 natr\u00e9novan\u00e9 modely byly zve\u0159ejn\u011bny pro <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/tesseract-ocr\/tesseract\/wiki\/Data-Files\">123 jazyk\u016f<\/a><\/noindex>. Pro optimalizaci v\u00fdkonu jsou k dispozici moduly vyu\u017e\u00edvaj\u00edc\u00ed OpenMP a SIMD instrukce AVX2, AVX nebo SSE4.1. <\/p>\n<p>Hlavn\u00ed <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/tesseract-ocr\/tesseract\/wiki\/ReleaseNotes\">vylep\u0161en\u00ed<\/a><\/noindex> v Tesseract 4.1:<\/p>\n<ul>\n<li class=\"l\"> Byla p\u0159id\u00e1na mo\u017enost v\u00fdstupu ve form\u00e1tu XML <noindex><a rel=\"nofollow\" href=\"https:\/\/en.wikipedia.org\/wiki\/ALTO_(XML)\">ALTO<\/a><\/noindex> (Analyzed Layout and Text Object). Pro pou\u017eit\u00ed tohoto form\u00e1tu je t\u0159eba spustit aplikaci jako &#171;tessaract n\u00e1zev_obr\u00e1zku v\u00fdstupn\u00ed_adres\u00e1\u0159 alto&#187;;\n<li class=\"l\"> Byly p\u0159id\u00e1ny nov\u00e9 moduly pro vykreslov\u00e1n\u00ed LSTMBox a WordStrBox, kter\u00e9 zjednodu\u0161uj\u00ed \u0161kolen\u00ed enginu;\n<li class=\"l\"> Byla p\u0159id\u00e1na podpora pseudografiky ve v\u00fdstupu hOCR (HTML);\n<li class=\"l\"> Byly p\u0159id\u00e1ny alternativn\u00ed skripty napsan\u00e9 v Pythonu pro \u0161kolen\u00ed enginu zalo\u017een\u00e9ho na strojov\u00e9m u\u010den\u00ed;\n<li class=\"l\"> Byly roz\u0161\u00ed\u0159eny optimalizace pomoc\u00ed instrukc\u00ed AVX, AVX2 a SSE;\n<li class=\"l\"> Podpora OpenMP je ve v\u00fdchoz\u00edm nastaven\u00ed vypnuta kv\u016fli <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/tesseract-ocr\/tesseract\/issues\/1171\">probl\u00e9mech<\/a><\/noindex> v\u00fdkonu;\n<li class=\"l\"> Ve LSTM enginu byla p\u0159id\u00e1na podpora b\u00edl\u00fdch a \u010dern\u00fdch seznam\u016f;\n<li class=\"l\"> Byly vylep\u0161eny sestavovac\u00ed skripty zalo\u017een\u00e9 na Cmake.\n<\/ul>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Zdroj: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=51081\">opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041f\u043e\u0434\u0433\u043e\u0442\u043e\u0432\u043b\u0435\u043d \u0440\u0435\u043b\u0438\u0437 \u0441\u0438\u0441\u0442\u0435\u043c\u044b \u043e\u043f\u0442\u0438\u0447\u0435\u0441\u043a\u043e\u0433\u043e \u0440\u0430\u0441\u043f\u043e\u0437\u043d\u0430\u0432\u0430\u043d\u0438\u044f \u0442\u0435\u043a\u0441\u0442\u0430 Tesseract 4.1, \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u044e\u0449\u0435\u0439 \u0440\u0430\u0441\u043f\u043e\u0437\u043d\u0430\u0432\u0430\u043d\u0438\u0435 \u0441\u0438\u043c\u0432\u043e\u043b\u043e\u0432 UTF-8 \u0438 \u0442\u0435\u043a\u0441\u0442\u043e\u0432 \u043d\u0430 \u0431\u043e\u043b\u0435\u0435 \u0447\u0435\u043c 100 \u044f\u0437\u044b\u043a\u0430\u0445, \u0432\u043a\u043b\u044e\u0447\u0430\u044f \u0440\u0443\u0441\u0441\u043a\u0438\u0439, \u043a\u0430\u0437\u0430\u0445\u0441\u043a\u0438\u0439, \u0431\u0435\u043b\u043e\u0440\u0443\u0441\u0441\u043a\u0438\u0439 \u0438 \u0443\u043a\u0440\u0430\u0438\u043d\u0441\u043a\u0438\u0439. \u0420\u0435\u0437\u0443\u043b\u044c\u0442\u0430\u0442 \u043c\u043e\u0436\u0435\u0442 \u0441\u043e\u0445\u0440\u0430\u043d\u044f\u0442\u044c\u0441\u044f \u043a\u0430\u043a \u043e\u0442\u043a\u0440\u044b\u0442\u044b\u043c \u0442\u0435\u043a\u0441\u0442\u043e\u043c, \u0442\u0430\u043a \u0438 \u0432 \u0444\u043e\u0440\u043c\u0430\u0442\u0430\u0445 HTML (hOCR), ALTO (XML), PDF \u0438 TSV. \u0418\u0437\u043d\u0430\u0447\u0430\u043b\u044c\u043d\u043e \u0441\u0438\u0441\u0442\u0435\u043c\u0430 \u0431\u044b\u043b\u0430 \u0441\u043e\u0437\u0434\u0430\u043d\u0430 \u0432 1985-1995 \u0433\u043e\u0434\u0430\u0445 \u0432 \u043b\u0430\u0431\u043e\u0440\u0430\u0442\u043e\u0440\u0438\u0438 \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0438 Hewlett Packard, \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-36102","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=\"\u041f\u043e\u0434\u0433\u043e\u0442\u043e\u0432\u043b\u0435\u043d \u0440\u0435\u043b\u0438\u0437 \u0441\u0438\u0441\u0442\u0435\u043c\u044b \u043e\u043f\u0442\u0438\u0447\u0435\u0441\u043a\u043e\u0433\u043e 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