The Synthesis of Multi-Graphic Visual Encryption Technology
Zhu Jianle, Peng Fei Cao, Peijun Huo, Xuan hang Wang, Fangfang Chen · 2017
Visual encryption is a widely used in the field of security and information hiding technology. The visual effect of information extraction and the non-visual effect embedding are the key factors that reflect the level of this technology, especially the multiple image information hidden in the same image, the technical requirements for its higher. This paper presents a method of combining moire fringe amplification based on binary phase modulation (2PSK) and multi-angle grating, in order to realize the visual encryption of multiple image information implantation. Using the same frequency grating as decoder, this technique can effectively solve the problem of combining the invisible effect of information hiding and the visual effect of extracting information. This technology has the advantages of large information capacity, good hiding effect and strong anti-replication performance, which can be widely used in packaging printing and copyright protection of books, and to provide value-added services while piracy infringement.