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Digitale Wasserzeichen by Kannemann, Fabian

Digitale Wasserzeichen

by Fabian Kannemann
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Book cover type: Paperback
  • ISBN13: 9783638751681
  • Binding: Paperback
  • Subject: N/A
  • Publisher: Grin Verlag
  • Publisher Imprint: Grin Verlag
  • Publication Date:
  • Pages: 26
  • Original Price: USD 25.5
  • Language: German
  • Edition: N/A
  • Item Weight: 46 grams
  • BISAC Subject(s): Communication Studies

Studienarbeit aus dem Jahr 2003 im Fachbereich BWL - Informationswissenschaften, Informationsmanagement, Note: 1,3, Technische Universit�t Ilmenau, Veranstaltung: Informationsmanagement f�r digitale G�ter, Sprache: Deutsch, Abstract: Die Nutzung von Wasserzeichen ist eine seit Jahrhunderten bekannte M�glichkeit, die Echtheit physischer Materialien zu belegen. Das heute bekannteste Beispiel sind Wasserzeichen in Geldscheinen. Die wachsende Bedeutung digitaler G�ter und deren besondere Eigenschaften machen es notwendig, nach M�glichkeiten zur Feststellung der Herkunft und der Unverf�lschtheit dieser digitalen G�ter zu suchen. Einen Ansatz hierf�r stellen digitale Wasserzeichen dar. Es wird in dieser Arbeit untersucht, was digitale Wasserzeichen sind, welche Eigenschaften sie aufweisen m�ssen, um f�r verschiedene Arten von digitalen G�tern insbesondere deren Authentizit�t und Integrit�t nachweisen zu k�nnen. Digitale Wasserzeichen stellen im Ergebnis der Arbeit einen brauchbaren Ansatz dar, wie man unter Ber�cksichtigung der besonderen Eigenschaften digitaler G�ter deren Authentizit�t bzw. Integrit�t feststellen kann und wie man einen Kopierschutz durchsetzen kann. Bei den Wasserzeichen stehen die Anforderungen Robustheit, Nicht-Wahrnehmbarkeit, Sicherheit und Kapazit�t im Vordergrund. Es existieren bereits viele unterschiedliche Verfahren insbesondere f�r Einzelbilder. F�r Video- und Audiodokumente existieren mehrere Ans�tze, die Forschung f�r Wasserzeichenverfahren bei 3D-Modellen steht gerade erst am Anfang.

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