{"id":103361,"date":"2022-02-16T21:37:38","date_gmt":"2022-02-16T19:37:39","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/predstavlen-unredacter-instrument-dlya-opredeleniya-pikselizirovannogo-teksta"},"modified":"2022-02-16T21:37:38","modified_gmt":"2022-02-16T19:37:39","slug":"predstavlen-unredacter-instrument-dlya-opredeleniya-pikselizirovannogo-teksta","status":"publish","type":"post","link":"https:\/\/prohoster.info\/da\/blog\/news\/predstavlen-unredacter-instrument-dlya-opredeleniya-pikselizirovannogo-teksta","title":{"rendered":"Unredacter, et v\u00e6rkt\u00f8j til at bestemme pixeleret tekst, er blevet pr\u00e6senteret.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Unredacter-v\u00e6rkt\u00f8jet er blevet pr\u00e6senteret, hvilket g\u00f8r det muligt at genoprette den oprindelige tekst efter dens skjulning ved hj\u00e6lp af filtre baseret p\u00e5 pixelering. For eksempel kan programmet bruges til at identificere fortrolige data og adgangskoder, der er pixeliseret p\u00e5 sk\u00e6rmbilleder eller dokumentfotos. Det h\u00e6vdes, at algoritmen implementeret i Unredacter overg\u00e5r tidligere tilg\u00e6ngelige lignende v\u00e6rkt\u00f8jer som Depix, og den er ogs\u00e5 blevet brugt med succes til at best\u00e5 testen for identifikation af pixeliseret tekst, foresl\u00e5et af Jumpsec-laboratoriet. Programmets kode er skrevet i TypeScript og distribueres under GPLv3-licensen. <\/p>\n

For at genoprette tekst i Unredacter anvendes en metode til bagl\u00e6ns s\u00f8gning, hvor en del af det oprindelige pixeliserede billede sammenlignes med en variant syntetiseret ved at gennemteste par af tegn, der pixeliseres med forskellige forskydninger og \u00e6ndrede egenskaber. Under denne proces v\u00e6lges en variant, der n\u00e6rmest svarer til det oprindelige fragment. For at sikre korrekt funktion kr\u00e6ves det at g\u00e6tte st\u00f8rrelsen, typen og parametre for skrifth\u00e6ld, samt beregne cellest\u00f8rrelsen i pixelgitteret og positionen af dette gitter oven p\u00e5 teksten (gitterforskydninger gennemg\u00e5s automatisk).

\"Unredacter,<\/center> <\/p>\n

Derudover kan projektet DepixHMM n\u00e6vnes, hvor en version af v\u00e6rkt\u00f8jet Depix er blevet forberedt, oversat til en algoritme baseret p\u00e5 en skjult Markov-model, som har gjort det muligt at forbedre n\u00f8jagtigheden ved rekonstruktion af symboler.
\n
Kilde: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u041f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d \u0438\u043d\u0441\u0442\u0440\u0443\u043c\u0435\u043d\u0442\u0430\u0440\u0438\u0439 Unredacter, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0438\u0439 \u0432\u043e\u0441\u0441\u0442\u0430\u043d\u043e\u0432\u0438\u0442\u044c \u0438\u0437\u043d\u0430\u0447\u0430\u043b\u044c\u043d\u044b\u0439 \u0442\u0435\u043a\u0441\u0442, \u043f\u043e\u0441\u043b\u0435 \u0435\u0433\u043e \u0441\u043a\u0440\u044b\u0442\u0438\u044f \u0441 \u043f\u0440\u0438\u043c\u0435\u043d\u0435\u043d\u0438\u0435\u043c \u0444\u0438\u043b\u044c\u0442\u0440\u043e\u0432 \u043d\u0430 \u043e\u0441\u043d\u043e\u0432\u0435 \u043f\u0438\u043a\u0441\u0435\u043b\u0438\u0437\u0430\u0446\u0438\u0438. \u041d\u0430\u043f\u0440\u0438\u043c\u0435\u0440, \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u0430 \u043c\u043e\u0436\u0435\u0442 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c\u0441\u044f \u0434\u043b\u044f \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0435\u043d\u0438\u044f \u043a\u043e\u043d\u0444\u0438\u0434\u0435\u043d\u0446\u0438\u0430\u043b\u044c\u043d\u044b\u0445 \u0434\u0430\u043d\u043d\u044b\u0445 \u0438 \u043f\u0430\u0440\u043e\u043b\u0435\u0439, \u043f\u0438\u043a\u0441\u0435\u043b\u0438\u0437\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u0445 \u043d\u0430 \u0441\u043a\u0440\u0438\u043d\u0448\u043e\u0442\u0430\u0445 \u0438\u043b\u0438 \u0441\u043d\u0438\u043c\u043a\u0430\u0445 \u0434\u043e\u043a\u0443\u043c\u0435\u043d\u0442\u043e\u0432. \u0423\u0442\u0432\u0435\u0440\u0436\u0434\u0430\u0435\u0442\u0441\u044f, \u0447\u0442\u043e \u0440\u0435\u0430\u043b\u0438\u0437\u043e\u0432\u0430\u043d\u043d\u044b\u0439 \u0432 Unredacter \u0430\u043b\u0433\u043e\u0440\u0438\u0442\u043c \u043f\u0440\u0435\u0432\u043e\u0441\u0445\u043e\u0434\u0438\u0442 \u0440\u0430\u043d\u0435\u0435 \u0434\u043e\u0441\u0442\u0443\u043f\u043d\u044b\u0435 \u0430\u043d\u0430\u043b\u043e\u0433\u0438\u0447\u043d\u044b\u0435 \u0443\u0442\u0438\u043b\u0438\u0442\u044b, \u0442\u0430\u043a\u0438\u0435 \u043a\u0430\u043a Depix, \u0438 \u0432 \u0442\u043e\u043c \u0447\u0438\u0441\u043b\u0435 \u0443\u0441\u043f\u0435\u0448\u043d\u043e \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d \u0434\u043b\u044f \u043f\u0440\u043e\u0445\u043e\u0436\u0434\u0435\u043d\u0438\u044f \u0442\u0435\u0441\u0442\u0430 […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":103362,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-103361","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47 Unredacter, v\u00e6rkt\u00f8jet til identificering af pixeliseret tekst | ProHoster","description":"Unredacter-v\u00e6rkt\u00f8jet er blevet pr\u00e6senteret, hvilket g\u00f8r det muligt at genoprette den oprindelige tekst efter dens skjulning ved hj\u00e6lp af filtre baseret p\u00e5 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