摘要
以自适应量化和多次关系嵌入为基础,提出了小波域的双重水印嵌入算法。该算法采用约瑟夫置乱和帐篷加密预处理水印;利用人类视觉系统(HVS)的特性确定量化间隔;采用投票表决的方法增强嵌入水印的鲁棒性;考虑了舍入误差对算法的影响,对待检测栽体进行了补偿。仿真结果表明,该算法不仅具有很好的不可见性,而且对JPEG压缩、色深变换、挤压等水印攻击具有较强的鲁棒性。
Based on the auto-adapted quantification and many times of relation inserting as the foundation, proposes the wavelet territory dual watermark inserting plan. This algorithm uses Joseph to set at chaotic and the tent encryption pretreatment watermark. Uses human vision system （HVS） ＇s characteristic to definites quantification gap. Uses the voting by ballot method to enhance robustness of inserting watermark. The compensation must be taken into account before examing the watermark. The simulation result indicates that this plan has the very good invisibility and strong robustness.
出处
《电子技术应用》
北大核心
2007年第10期154-157,共4页
Application of Electronic Technique
关键词
数字水印
小波变换
人眼视觉系统
投票表决
digital watermark
wavelet transform
human visual system（HVS）
voting by ballot
