利用混沌序列的特性,提出一种新的混沌彩色图像加密算法.首先对Logistic和Cubic-Henon复合混沌映射进行处理,生成混沌序列,再结合像素值替代和图像位置置乱方法对彩色图像进行加密,然后进行实验仿真和性能分析,结果表明该算法加密性能良好。
A chaotic color image encryption algorithm is proposed on the basis of properties of chaotic sequences.At first,the chaotic sequences are generated by dealing with Logistic and Cubic-Henon compound chaotic system.Then the color image is encrypted by combining the methods of pixel value substituting and position shuffling.The results of simulation experiment and performance analysis show that the algorithm is valid and has good performance.