Digital watermarking scheme with visual cryptography

The aim of this paper is to propose a novel digital watermarking scheme using visual cryptography. A binary image, called watermark, is split into two shares via a 2-out-of-2 visual secret sharing scheme. Then, one of the shares is embedded into the host image, and the other is held by the owner. When proving the ownership, the owner has to extract the embedded share and recover the watermark with his/her own share. Based on the security property of visual cryptography, our scheme can make sure that the two shares cannot leak any information about the watermark. Unlike other researchers' method, our scheme needs not a trust third party to avoid the multiple claming problem. Besides, the experimental results show that our scheme can resist most of common attacks.