Digital image authentication includes active authentication and passive authentication.
数字图像认证技术包括主动与被动两种方法。
The third method is effective integrate the former two algorithms, which proposed dual watermarking algorithm for digital image authentication.
第三种算法是将前两种空域和变换域算法进行有效融合，从而提出了双重多功能性水印数字图像认证算法。
In this dissertation, we mainly study on digital image authentication method in two aspects: complete authentication and content authentication.
本文主要探讨针对数字图像的认证方法，对于图像认证的两大场合：精确认证和内容认证分别进行了研究。
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