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    <ns1:title language="sr">Detekcija namerno izazvanih promena u sadržaju slike</ns1:title>
    <ns2:subtitle language="sr">doktorska disertacija</ns2:subtitle>
    <ns2:alt_title language="en">Detection of intentionally made changes in image content  : doctoral dissertation</ns2:alt_title>
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    <ns1:description language="sr">Digital images and video signals represent the most frequently transmitted contents. Namely, with the development of modern digital cameras and smartphones, the use of multimedia content increases every day. They are used in everyday life, for getting information and also as authenticated proofs or corroboratory evidence in different areas like: forensic studies, law enforcement, journalism and others...</ns1:description>
    <ns1:description language="sr">Multifraktalna analiza se pokazala kao dobar alat za analizu postojećih slika, kao i segmentaciju određenih regiona, izdvajanje ivica, uglova slike i slično. Kako kopirani i nalepljeni delovi imaju sličnu strukturu, može se primeniti multifraktalna analiza, koja u osnovi analizira samosličnost. Multifraktalni spektar daje globalni opis slike (ili, opštije, fenomena koji se ispituje). Vrednost Hölder-ovog eksponenta zavisi od položaja u strukturi i opisuje lokalnu regularnost signala. Naime, različiti objekti na slici imaju različite spektre, različite pozicije maksimuma, minimuma, prve nule itd, što se pokazalo kao interesantan skup različitih parametara pomoću kojih se mogu detektovati namerne promene na slikama...</ns1:description>
    <ns1:description language="sr">Telekomunikacije, obrada slike, forenzika slike - Forenzika slike / Telecommunications, Image processing, Image forensics - Image forensics  
Datum odbrane: 19.06.2019.</ns1:description>
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