With the development of information technology, image information has become the main content of network information transmission. With the development of image encryption technology, it is also about the development of image information theft technology. In order to cope with the evolving information theft technology, we must seek a better image encryption algorithm. Among many algorithms, due to the superiority of chaos technology, when the image is encrypted with chaos technology, the ciphertext presents a randomness, which makes the possibility of deciphering greatly reduced. Therefore, the research of digital image encryption algorithm based on chaos technology has become an important means of modern digital image encryption. In this paper, the digital image encryption technology is studied with the dual logistic chaotic map as a tool. The simulation experiments are carried out by using the classical Lena image and the life picture, and the results are analyzed from the histogram, pixel correlation, information entropy, key space size, key sensitivity, and so on. The results show that the method used in this paper has a better security effect.

中文翻译：

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基于双逻辑混沌映射的数字图像加密算法研究

随着信息技术的发展，图像信息已经成为网络信息传输的主要内容。随着图像加密技术的发展，也涉及图像信息盗窃技术的发展。为了应对不断发展的信息盗窃技术，我们必须寻求更好的图像加密算法。在许多算法中，由于混沌技术的优越性，当使用混沌技术对图像进行加密时，密文呈现出随机性，从而大大降低了解密的可能性。因此，基于混沌技术的数字图像加密算法的研究已成为现代数字图像加密的重要手段。本文以双逻辑混沌图为工具研究了数字图像加密技术。利用经典的Lena图像和生活图片进行了仿真实验，并从直方图，像素相关性，信息熵，关键空间大小，关键灵敏度等方面分析了结果。结果表明，该方法具有较好的安全性。