基于结构化编码的抗剪切图像数字水印

提出了一种利用辅助信息的抗剪切数字水印算法。该算法通过对数字水印进行结构化编码使其具有标识功能,并设计了相应的结构化嵌入和提取策略。实验结果表明,算法提取效果好,速度快,能够有效地抵抗剪切攻击和一些常规攻击。

Crop-resistant digital watermarking for image based on structured coding

A digital watermarking algorithm based on the accessorial information was proposed to resist cropping attack. The algorithm coded watermark with structured coding, and made the digital watermarking possess the identifying function. The embedding and extracting strategies were designed too. Experimental results show that the algorithm has good extracting effect and the fast speed, and can resist cropping attack and some routine attacks effectively.