通信学报 ›› 2013, Vol. 34 ›› Issue (3): 165-170.doi: 10.3969/j.issn.1000-436x.2013.03.021

• 学术通信 • 上一篇    下一篇

无损分享视觉密码研究

郁滨,付正欣   

  1. 信息工程大学 电子技术学院,河南 郑州450004
  • 出版日期:2013-03-25 发布日期:2017-07-20
  • 基金资助:
    国家自然科学基金资助项目;河南省杰出人才创新基金资助项目

Lossless sharing visual cryptography

Bin YU,Zheng-xin FU   

  1. Institute of Electronic Technology, Information Engineering University, Zhengzhou 450004, China
  • Online:2013-03-25 Published:2017-07-20
  • Supported by:
    The National Natural Science Foundation of China;The Excellent Youth Foundation of Henan Scientific Committee

摘要:

根据秘密图像分享过程中的信息损失,给出了无损分享视觉密码的概念,从而将视觉密码2个参数的优化问题简化为一个,并提出了矩阵转化算法和整数规划模型,实现了一种像素扩展度的优化算法。实验结果表明,该算法能够实现无损分享下的像素扩展度最优化,且适用于通用存取结构。

关键词: 视觉密码, 无损分享, 像素扩展度, 优化算法

Abstract:

According to the information loss during the secret image sharing process, the lossless sharing visual crypto-graphy was proposed. The optimizations of two parameters were simplified into one parameter. The matrices translation algorithm and the integer programming model were designed. Furthermore, the pixel expansion optimization algorithm was realized. The experimental results show that the algorithm achieves the optimal pixel expansion under lossless shar-ing, and can be used in general access structure.

Key words: isual cryptography, lossless sharing, pixel expansion, optimization algorithm

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