| 2. | Digital watermarks may be all kinds of information which can be embedded into multimedia data , just as digits , serial numbers , text , image symbols , so it can be used in copyright protection , marker production , covert communication , data ownership confirmation , data authentication
数字水印是指嵌入到多媒体数据中的信息,可以是数字、序列号、文字、图像标志等各类信息,以起到版权保护、标志产品、秘密通信、证实数据归属权、鉴别数据真伪等作用。 |
