Verifiable Visual Cryptography Based on Iterative Algorithm
基于迭代算法的可验证视觉密码

By changing sharing and recovering ways of the verification image, a verifiable Visual Cryptography Scheme (VCS) based on iterative algorithm is proposed in this paper. Since the verification image is shared with special algorithms, and the verification process is optimized through iterative algorithm, the proposed scheme not only makes the pixel expansion much smaller, but also improves the checking efficiency greatly. Furthermore, verification images are perfectly recovered by the XOR operation introduced.