Cocktail watermarking on images

Details Cocktail watermarking on images Cocktail watermarking on images

H - Electricity

04

L

H04L 9/32 (2006.01) G06T 1/00 (2006.01) H04N 1/32 (2006.01) H04N 5/272 (2006.01) H04N 7/26 (2006.01)

Patent

CA 2284866

A novel image protection scheme named "cocktail watermarking" improves over current spread-spectrum watermarking approaches. Two watermarks, which play complementary roles, are simultaneously embedded into an original image. The new watermarking scheme has the characteristic that, no matter what an attack is, at least one watermark typically survives well and can be detected. Results of extensive experiments indicate that our cocktail watermarking scheme is effective in resisting various attacks.

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