数字水印作为信息隐藏技术的一个主要的分支，成为近年来多媒体安全领域的研究热点之一。
As a primary branch of information hiding, digital watermarking has become one of the most hotspots in the filed of security.
数字水印技术是多媒体信息安全领域的一个重要的研究课题。
Digital watermark technique is one of the most active research topics in the safety field of multimedia information.
数字图像认证技术作为多媒体信息安全技术的分支之一，受到了越来越多专家学者的重视。
As a branch of multimedia information security technology, digital image authentication is paid close attention by one of a growing number of experts.
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