Digitale Wasserzeichen zum Schutz von Bildern

Digitale Wasserzeichen zum Schutz von Bildern

Priyanka Nandal

43,88 €
IVA incluido
Disponible
Editorial:
KS OmniScriptum Publishing
Año de edición:
2024
Materia
Tecnología: cuestiones generales
ISBN:
9786207748525
43,88 €
IVA incluido
Disponible

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Die Möglichkeit, ein und dasselbe Bild mit mehreren Wasserzeichen zu versehen, würde viele interessante Anwendungen ermöglichen, z. B. die Rückverfolgung von Multimediadokumenten, die Überwachung der Datennutzung und die Verwaltung mehrerer Objekte. In diesem Buch wird ein neuartiges Wasserzeichenverfahren vorgestellt, das es ermöglicht, mehrere Wasserzeichen nacheinander in ein digitales Bild einzufügen und zuverlässig zu erkennen. Die vorgeschlagene Methode, die auf elementarer linearer Algebra basiert, ist asymmetrisch, sicher gegenüber Projektionsangriffen und robust gegenüber Verzerrungen durch grundlegende Vorgänge wie Speicherung, Übertragung und Formatkonvertierung. Digitales Wasserzeichen ist ein Verfahren zur Modifizierung physischer oder elektronischer Medien, um einen maschinenlesbaren Code in die Medien einzubetten. Die Medien können so verändert werden, dass der eingebettete Code für den Benutzer nicht oder kaum wahrnehmbar ist, jedoch durch ein automatisches Erkennungsverfahren entdeckt werden kann.

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