Digital watermarking is the technology that embeds secret information into digital multimedia data such as sound, image or video by using signal processing technology.

数字水印技术是用信号处理的方法在声音，图像或视频等数字化多媒体数据中嵌入隐蔽信息的行为。

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Database technology provides the best method for handling the retrieval and processing of information during multimedia making.

在多媒体开发过程中，面对大量的信息检索与处理， 数据库技术无疑为问题的解决提供了最佳方案。

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