Image watermarking using multiple watermarking methods for...

Details Image watermarking using multiple watermarking methods for... Image watermarking using multiple watermarking methods for...

G - Physics

06

T

G06T 1/00 (2006.01)

Patent

CA 2613997

A method (100) of watermarking an image (101) is disclosed. The method (100) segments the image (101) into regions. Each region is then characterised based upon one or more statistical features of the respective regions. For each region, a watermarking method and a number of bits to be embedded into the respective region are selected based on the characterization of the region. The number of bits of data is then embedded into the respective region using the watermarking method selected for that region. A method (105) of decoding a watermarked image (145) is also disclosed.

Procédé (100) d'établissement de filigrane d'image (101) : segmentation de l'image (101) en zones, chacune étant ensuite caractérisée selon une ou plusieurs caractéristiques statistiques respectives. Pour chaque zone, un procédé et un certain nombre de bits à imbriquer dans la zone sont choisis selon la caractérisation de la zone, puis on imbrique les bits de données dans la zone selon le procédé choisi pour la zone. Egalement,procédé (105) de décodage d'image filigranée (145).

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