A robust digital watermarking mechanism for multimedia

A robust digital watermarking mechanism for multimedia

Watermarking techniques are primarily used for copyright protection. We develop a digital watermarking technique, which is based on Torus Automorphism and cryptography. In order to achieve copyright protection properly, digital watermarking must satisfy the following requirements. (1) high quality o...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: HUANG, MING-SHIANG, JANG, JENNG, HUANG, GUO-FENG
Format: Patent
Sprache:eng
Schlagworte:
ADVERTISING
CALCULATING
CODING OR CIPHERING APPARATUS FOR CRYPTOGRAPHIC OR OTHERPURPOSES INVOLVING THE NEED FOR SECRECY
COMPUTING
COUNTING
CRYPTOGRAPHY
DISPLAY
EDUCATION
HANDLING RECORD CARRIERS
PHYSICS
PRESENTATION OF DATA
RECOGNITION OF DATA
RECORD CARRIERS
SEALS
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Beschreibung
Zusammenfassung:Watermarking techniques are primarily used for copyright protection. We develop a digital watermarking technique, which is based on Torus Automorphism and cryptography. In order to achieve copyright protection properly, digital watermarking must satisfy the following requirements. (1) high quality of watermarked media. (2) watermarks can not be detected by illegal people. (3) algorithms must be made public. (4) to retrieve watermarks does not need original media. (5) watermarks can resistant several modifications; such as filtering, crop-and-paste, lossy data compression, etc. (6) high performance.