本文在介绍虹膜识别系统基本原理的基础上，比较和分析了现有的较有影响的灰度及彩色虹膜定位算法及其缺点和不足，并提出改进方案。-In this paper, the basic principle of introducing the iris recognition system, comparison and analysis of the more influential grayColor iris localization algorithm and its hortcomings and

用用户生物特征生成密钥和Rijndael算法作为AES的优良特性,本文提出了一种基于虹膜生物特征的密钥生成和Rijndael算法的图像加密方案。实验结果表明,该方案具有良好的加密效果,得到了一种新的图像加密方法。-With the user s biometric key and Rijndael algorithm as the excellent characteristics of AES, this paper proposes an image encryption scheme ba