中文摘要：

提出了一种基于双混沌映射的图像加密算法，由Chebyshev映射和Logistic映射配合产生位置置乱矩阵和像素置乱矩阵，通过对像素位置置乱和像素值扩散过程进行两轮操作完成图像加密。实验结果表明，该算法加密效果较好。

英文摘要：

An image encryption algorithm based on double chaotic map is proposed. Chebyshev map and Logistic map cooperate to generate the scrambling position matrix and the pixel matrix, and the algorithm is achieved by the pixel position permutation and pixel value scrambling for two rounds. Simulation results show that the algorithm is good at encryption effect as well as robustness against common attack such as brute -force attack, statistical attack, known - plaintext attack, chosen - plaintext attack and differential attack.