基于Logistic-正弦映射和双碱基DNA编码的图像隐写

摘要

In this paper,a novel scheme for image steganography is proposed,which is based on logistic-sine map and improved DNA encoding.Logistic-sine map could produce larger chaotic ranges and better chaotic behaviors than traditional logistic map and sine map.The generated sequences are more suitable for image encryption.Double base complementary rules are presented.There are so many new complementary rules.The improved DNA map not only enhances secret image safety efficiently, but also improves coding efficiency availably.The presented method is easy and good at encryption effect.The experiments also show that the proposed algorithm is excellent in security,availability and robustness.%本文在Logistic-正弦映射和双碱基 DNA 编码的基础上,提出了一种新型的信息隐藏算法.通过Logistic-正弦映射,可以有效地扩大参数的范围,生成随机性更好的混沌序列,同时生成的序列具有更大的李雅普诺夫指数,因此更符合图像编码的需要.提出的双碱基编码规则既能够有效地提高编码规则的数量,增强秘密信息的安全性,又能够提高编码效率.本文提出的算法隐藏效果好,实验结果证明了该方法的安全性、有效性和鲁棒性.