Electronic watermark system

Details Electronic watermark system Electronic watermark system

H - Electricity

04

L

H04L 9/32 (2006.01) G06T 1/00 (2006.01) G11B 20/00 (2006.01) H04N 1/21 (2006.01) H04N 1/32 (2006.01) H04N 1/387 (2006.01) H04N 7/26 (2006.01) H04N 7/50 (2006.01)

Patent

CA 2229395

An electronic watermark system invisibly embeds watermark information into original image data and the watermarked image data is transferred to a first medium. At the same time, the embedded watermark information is transferred to a second medium. When a medium questioned is found, its watermark information can be easily identified by searching the second medium. Alternatively, the watermarked image data and the embedded watermark information are transferred to different storage areas of the same medium, respectively.

Système électronique permettant l'intégration invisible d'information en filigrane dans des données d'image originelles, les données d'image filigranées étant transférées sur un premier support, et l'information en filigrane intégrée étant transférée sur un deuxième support. Lorsqu'un support est suspect, l'information en filigrane qu'il contient peut facilement être identifiée au moyen d'une recherche sur le deuxième support. Ou encore, les données d'image filigranées et l'information en filigrane intégrée sont transférées dans différentes zones de mémoire du même support, respectivement.

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