单通道彩色图像加密技术研究  

Research on Single Channel Color Image Encryption Technology

作　　者：强俊杰 姚丽莉[1] 冯少彤[1] 袁操今[1] 聂守平[1] 

机构地区：[1]南京师范大学江苏省光电技术重点实验室,江苏南京210023

出　　处：《南京师范大学学报（工程技术版）》2015年第4期41-46,共6页Journal of Nanjing Normal University(Engineering and Technology Edition)

基　　金：国家自然科学基金(61377003;61275133);南京师范大学高层次人才科研启动项目(184080H20162);南京师范大学青年领军人才培养项目(184080H20178)

摘　　要：研究了一种基于双随机相位编码的单通道彩色图像加密算法.在该算法中,采用正弦光栅对彩色图像进行预处理,使得彩色图像可以单通道加密.两个随机相位掩膜函数构成了对预处理图像加密的双相位(即密钥),保证了彩色图像单通道加密的安全性.由于解密图像的画质不是很好,故采用零级融合的方法加以改善.同时,针对加密图像作了剪切攻击模拟实验.模拟实验结果证实了该算法的有效性.The paper studies a single channel based on double random phase encoding color image encryption algorithm. In this algorithm, the sinusoidal grating is adopted to preprocess color image, and the color image can be encrypted in the single channel. Two random phase mask function together constitute the double phase of preprocessing image encryption, which guarantees the safety of the single channel color image encryption. As the decrypted image quality is not very good, the zero level fusion method can be improved. At the same time, the shear attack simulation experiment on encryption image is conducted. Simulation results confirm the effectiveness of the algorithm.

关 键 词：正弦光栅 双随机相位加密 零级融合 剪切攻击 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]