摘要
对图像进行置乱操作是实现图像加密的一种有效手段,它的加密效果依赖于所选择的置乱矩阵。文中讨论了混沌序列的特性,利用混沌序列对初值条件的敏感性生成位置置乱矩阵和灰度置乱矩阵,二者结合完成图像信息的加密。实验证明,所提算法是高效的、安全的。
Image scrambling is an effective method for image encryption,its effect depends on scrambling matrix.The paper discusses the characteristics of chaotic sequence,and generates position matrix and gray matrix using of its sensitivity to initial condition.Then combination of these two matrixes is used to encrypt image.The experimental results show that the algorithm is fairly good in efficiency and security.
出处
《测绘科学》
CSCD
北大核心
2006年第3期71-72,139,共3页
Science of Surveying and Mapping
