{"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\/nl\/blog\/news\/predstavlen-unredacter-instrument-dlya-opredeleniya-pikselizirovannogo-teksta","title":{"rendered":"Unredacter, een tool voor het herkennen van gepixeld tekst, is gepresenteerd","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

De unredacter-tool is gepresenteerd, waarmee de oorspronkelijke tekst kan worden hersteld na het verbergen met behulp van filters op basis van pixelisatie. Bijvoorbeeld, het programma kan worden gebruikt om gevoelige gegevens en wachtwoorden te identificeren die gepixeliseerd zijn op screenshots of afbeeldingen van documenten. Er wordt beweerd dat het algoritme dat in unredacter is ge\u00efmplementeerd, superieur is aan eerdere vergelijkbare tools, zoals Depix, en het is ook met succes gebruikt om de test voor het identificeren van gepixeliseerde tekst die door het Jumpsec-laboratorium werd aangeboden, te doorstaan. De programmacode is geschreven in TypeScript en wordt verspreid onder de GPLv3-licentie. <\/p>\n

Om tekst in unredacter te herstellen, wordt een methode van terughaling toegepast, waarbij een vergelijking van een deel van de oorspronkelijke gepixeliseerde afbeelding wordt gemaakt met een variant die is gesynthetiseerd door middel van het doorlopen van paren van tekens die gepixeliseerd worden met verschillende verschuivingen en gewijzigde kenmerken. Tijdens het doorlopen wordt geleidelijk een optie geselecteerd die het dichtst bij het oorspronkelijke fragment ligt. Voor een succesvolle werking is het noodzakelijk om de grootte, het type en de parameters van de lettertype-afstanden goed te raden, evenals de grootte van de cel in het pixelgrid en de positie van deze grid-overlay op de tekst (de opties voor het verschuiven van de grid worden automatisch doorlopen).

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

Daarnaast kan het project DepixHMM worden opgemerkt, waarin een variant van de Depix-tool is voorbereid, die is vertaald naar een algoritme op basis van een verborgen Markov-model, waarmee een verhoogde nauwkeurigheid bij het recre\u00ebren van tekens is bereikt.
\n
Bron: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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