METHOD FOR DISTRIBUTING AND AUTHENTICATING DATA SET BY USING WATER-MARK AND DEVICE THEREFOR

PROBLEM TO BE SOLVED: To fulfill a requirement according to an intended use and to obtain as inconspicuous, safe and quick water-marking as possible by converting a water-marked edition by using an identified privacy encoding method and extracting a water-mark from the privacy coded water-marked edi...

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Bibliographic Details
Main Authors TRESSER CHARLES P, MINTZER FREDERICK COLE, COPPERSMITH DON, YEUNG MINERVA MING-YEE, WU CHAI WAH
Format Patent
LanguageEnglish
Published 21.03.2000
Edition7
Subjects
ADVERTISING
CALCULATING
CODING OR CIPHERING APPARATUS FOR CRYPTOGRAPHIC OR OTHERPURPOSES INVOLVING THE NEED FOR SECRECY
COMPUTING
COUNTING
CRYPTOGRAPHY
DISPLAY
EDUCATION
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRIC DIGITAL DATA PROCESSING
ELECTRICITY
IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
PHYSICS
PICTORIAL COMMUNICATION, e.g. TELEVISION
SEALS
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Summary:PROBLEM TO BE SOLVED: To fulfill a requirement according to an intended use and to obtain as inconspicuous, safe and quick water-marking as possible by converting a water-marked edition by using an identified privacy encoding method and extracting a water-mark from the privacy coded water-marked edition of a source data set. SOLUTION: Privacy control 202 is added to source data 201. Thus, authentication can be attained, and simultaneously the privacy of the content of a data set can be protected. Then, water-marking algorithm is applied (203). Thus, privacy reinforced water-marked data 204 can be obtained. The water-mark is present in an image so that only the least significant bit of the image can be affected, and the maximum picture quality protection can be attained. An authenticated result 212 can be obtained from the privacy reinforced water- marked data 204.
Bibliography:Application Number: JP19990100887