近年来,随着网络和多媒体的快速发展,信息隐藏技术已经成为信息安全领域的一个研究热点。本文综述了信息隐藏的一般概念、研究方向、基本技术及其优缺点,最后针对不同应用领域提出了信息隐藏算法的性能评估。 In recent years, with the rapid development of network and multimedia, information hiding technology has become a hot research field in information security. This article summarizes the general concept of information hiding, research direction, basic technology and its advantages and disadvantages, and finally proposes the performance evaluation of information hiding algorithm for different applications.