Increase the information capacity of the watermark and watermark security, different levels of the watermark can be resistant, respectively JPEG compression with VQ reached the embedding of multiple watermarks, adapted to multi-purpose.
增大了水印的信息容量与水印的安全性,不同层次的水印能够分别抗JPEG与VQ的压缩,达到了嵌入多重水印,适应于多用途。
参考来源 - 基于矢量量化数字水印研究与应用·2,447,543篇论文数据，部分数据来源于NoteExpress
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