In this paper, an improved two-dimensional logistic-sine coupling map (N2D-LSCM) and an improved Henon map (NHenon) are proposed. Furthermore, by combining N2D-LSCM and NHenon map, an image encryption algorithm is proposed based on these two chaotic systems and DNA coding. The chaotic sequences generated by N2D-LSCM are used as the parameters of NHenon. In the scrambling stage, DNA encoding is carried out for pixels after scrambling by two chaotic sequences generated by N2D-LSCM; in the stage of diffusion, DNA random coding acts on random matrix obtained by two chaotic sequences generated by NHenon, and DNA XOR operation is carried out with the image obtained in the scrambling stage to diffuse. Compared with other 2D map for image encryption algorithm, this algorithm exhibits good security and holds high efficiency.

中文翻译：

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基于多混沌系统和DNA编码的图像加密算法

本文提出了一种改进的二维逻辑正弦耦合图（N2D-LSCM）和一种改进的汉农图（NHenon）。此外，通过结合N2D-LSCM和NHenon映射，提出了基于这两个混沌系统和DNA编码的图像加密算法。N2D-LSCM生成的混沌序列用作NHenon的参数。在加扰阶段，通过N2D-LSCM产生的两个混沌序列对像素进行DNA编码。在扩散阶段，DNA随机编码作用于由NHenon产生的两个混沌序列获得的随机矩阵，并对加扰阶段获得的图像进行DNA XOR操作以扩散。与其他二维地图图像加密算法相比，该算法具有较好的安全性和较高的效率。