At same time, digital watermarking, coming forth as a new technology, provides a new measure for hiding and tracking of data.

同时数字水印技术的出现为数据加密与追踪提供了新的技术手段。

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Now, digital watermarking has many other applications such as data authentication, indexing data, data hiding, and so on.

目前，除了版权保护应用之外，数字水印技术还具有许多其它方面的应用，例如数据认证、索引数据、数据隐藏等。

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Digital watermarking techniques can be used for purposes such as label, authentication, control and dada hiding etc, by embedding a secret imperceptible signal directly into the data to be protected.

数字水印技术通过向被保护的多媒体数据中加入透明的秘密信息，来达到标识、鉴别、控制或隐藏信息等作用。

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