摘要
针对医学图像数据量大、同色像素连续性高的特点,提出了一种基于混沌理论的图像加密算法。算法通过在多个一维混沌系统间的随机切换产生加密序列,在加密过程中对图像本身引入了双重反馈,从而有效延长了混沌序列的周期,提高了算法的安全性。实验证明,本算法具有较好的运行效率与加密效果。
Due to the characteristics of medical image：huge data and high continuity of same color pixels,a medical imageencryption algorithm based on chaos theory was proposed.The algorithm generates encryption array by randomly switching among multiple one-dimensional chaos systems,introduces duplex feedback to the image data while encryp-ting,which lengthens the sequence period and improves the security of algorithm.Experiment results show that the algorithm has good running efficiency and encryption effect.
出处
《计算机科学》
CSCD
北大核心
2012年第12期261-263,299,共4页
Computer Science
关键词
医学图像
混沌加密
双重反馈
Medical image
Chaos encryption
Duplex feedback
