介绍了信息隐藏技术的基本原理及其应用领域，说明了一个成功的信息隐藏系统设计时应满足的基本要求。最后介绍了数字图像信息隐藏的一种典型算法。-Describes the basic principles of information hiding technology and its applications, indicating a successful information-hiding systems should be designed to meet the basic require