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In this paper, a novel asymmetric public-key watermarking scheme is proposed. The watermark is embedded with the use of a private key, while the decoding uses only simple public key. The asymmetric watermark carries certain number of bits of information. However, neither the knowledge of a public key, nor the knowledge of the hidden information, does not allow the attacker to remove the watermark. That information can be read from an attacked image, in particular from a geometricallydoi:10.1016/j.image.2005.06.005 fatcat:pwuxxo6h2rejfds4qgisnkouv4