数字水印（Digital Watermarking）技术是将一些标识信息(即数字水印)直接嵌入数字载体(包括多媒体、文档、软件等)当中，但不影响原载体的使用价值，也不容易被人的知觉系统(如视觉或听觉系统)觉察或注意到-Digital Watermarking (Digital Watermarking) technology is the number of identification information (ie digital watermark) embedded in the number of direct vector (including multimedia, documents, software, etc.) which, but does not affect the value of the original carrier, it was not easy to be the perception system ( such as visual or auditory system) perceived or noted