Digital watermarking is the enabling technique to prove ownership on copyrighted material, detect the originator of illegally made copies, monitor the usage of the copyrighted multimedia data.

数字水印技术可用于版权资源保护、检查非法复制、监控版权多媒体数据使用。

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That large chunk of copyrighted data will no longer be publicly accessible by any means, short of separately negotiated agreements with those approximately 100 private sources (have fun).

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