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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The use of multimedia technology in information processing capacity of modern man has become an important indicator of quality of the capacity of one. lunwen114. com.

利用多媒体技术进行信息处理的能力已成为现代人能力素质的重要标志之一。

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Multimedia is a the same time, processing, editing, storage and display of two or more different types of media information technology.

多媒体是具有同时处理、编辑、存储和显示两种以上不同类型媒体信息的技术。

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