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Detection and Description of Geometrically Transformed Digital Images

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985556%3A_____%2F09%3A00323737" target="_blank" >RIV/67985556:_____/09:00323737 - isvavai.cz</a>

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Detection and Description of Geometrically Transformed Digital Images

  • Original language description

    Geometric transformations such as scaling or rotation are common tools employed by forgery creators. These procedures are typically based on a resampling and interpolation step. The interpolation process brings specific periodic properties into the image. In this paper, we show how to detect these properties. Our aim is to detect all possible geometric transformations in the image being investigated. Furthermore, as the proposed method, as well as other existing detectors, is sensitive to noise, we alsobriefly show a simple method capable of detecting image noise inconsistencies. Noise is a common tool used to conceal the traces of tampering.

  • Czech name

    Detekce a popis geometricky transformovaných digitálních obrazů

  • Czech description

    Geometrické transformace jsou běžným prostředkem padělatelů digitálních fotografií. Tyto postupy jsou založeny na převzorkování a interpolaci.Interpolace přináší do obrazu periodické vlastnosti. Naším cílem je detekovat všechny možné geometrické transformace ve zkoumaném obraze. Pozornost je také věnována dtekci šumových vlastností obrazu

Classification

  • Type

    D - Article in proceedings

  • CEP classification

    IN - Informatics

  • OECD FORD branch

Result continuities

  • Project

    <a href="/en/project/GA102%2F08%2F0470" target="_blank" >GA102/08/0470: Detection of digital image forgeries by passive-blind image authentication</a><br>

  • Continuities

    Z - Vyzkumny zamer (s odkazem do CEZ)

Others

  • Publication year

    2009

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Article name in the collection

    Media Forensics and Security (Proceedings of Spie)

  • ISBN

    978-0-8194-7504-6

  • ISSN

  • e-ISSN

  • Number of pages

    9

  • Pages from-to

  • Publisher name

    SPIE

  • Place of publication

    Washington

  • Event location

    San Jose

  • Event date

    Jan 19, 2009

  • Type of event by nationality

    WRD - Celosvětová akce

  • UT code for WoS article