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摘要
En 中文
This letter presents a novel visual cryptography scheme, called region incrementing visual cryptography (RIVC), for sharing visual secrets with multiple secrecy levels in a single image. In the proposed n-level RIVC scheme, the content of an image S is designated to multiple regions associated with secret levels, and encoded to n + 1 shares with the following features: (a) each share cannot obtain any of the secrets in S, (b) any (t2 <= t <= n + 1) shares can be used to reveal t - 1 levels of secrets, (c) the number and locations of not-yet-revealed secrets are unknown to users, (d) all secrets in S can be disclosed when all of the n + 1 shares are available, and (e) the secrets are recognized by visually inspecting correctly stacked shares without computation. The basis matrices for constructing the proposed - level RIVC with small values of n = 2, 3, 4 are introduced, and the results from two experiments are presented.
Keyword:
Image sharing
secret sharing
visual cryptography
visual secret sharing
期刊
IF:
9.6
论文数:
1.1W
被引数:
1.7W
机构
暂无机构信息

