密码系统
加密
图像(数学)
计算机科学
顶帽变换
人工智能
转化(遗传学)
计算机视觉
算法
分数阶傅立叶变换
傅里叶变换
彩色图像
数学
密码学
图像处理
傅里叶分析
数学分析
生物化学
化学
基因
操作系统
作者
Hang Chen,Yanhua Cao,Shutian Liu,Zhengjun Liu,Zhichao Yang
出处
期刊:Studies in computational intelligence
日期:2023-01-01
卷期号:: 77-103
标识
DOI:10.1007/978-3-031-22809-4_4
摘要
In this chapter, the methods of image encryption and decryption based on optical transformation are introduced. The extended fractional Fourier transform is constructed by designing an eccentric lens group, and is used in the image encryption system. By using the Fresnel diffraction model, an iterative phase recovery algorithm is constructed, and a color image hiding method and optical system are introduced. A parallel phase retrieval technique in gyrator transform domain is constructed, and is applied to construct an image decryption system.
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