基于双随机相位的彩色图像加密隐藏技术  

Color image encryption technique based on double random phase encoding

作　　者：范金坪[1] 张永林[1] 

机构地区：[1]暨南大学光电工程系,广东广州510632

出　　处：《计算机工程与设计》2009年第24期5762-5764,共3页Computer Engineering and Design

基　　金：广东省科学技术厅科技计划基金项目(2004B10101011)

摘　　要：为了能够完全无失真的提取隐藏图像,在双随机相位加密的基础上,提出了一种对彩色图像进行加密隐藏的方法。通过构造宿主图像矩阵,可以将待隐藏的彩色图像编码信息的实部和虚部同时隐藏于该宿主图像矩阵中,避免了已有方法需要传输多幅图像的不足。模拟实验结果表明,该方法不仅安全系数高,保密效果好,而且能完全无失真的提取隐藏图像。In order to extract the hidden image without distortion,a new technique of color image encryption and decryption method based on double random phase encoding technique is proposed.By constructing the host image matrix,the real and imaginary parts of the encoding data can be hidden in the corresponding part of the constructed host image matrix simultaneously which avoid the deficiency of multiple images transmission.The experimental results show that the method is effective in high security,well confidentiality and the recovered image is the same as the original hidden image.

关 键 词：数字图像 图像处理 图像加密 双随机相位编码 密钥 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]