DWT Based Blind Watermark in Relational Database

摘要：

　　Aiming to balance the robustness and imperceptibility of database watermark,propose a wavelet transform (DWT) based blind watermarking algorithm.The algorithm screens candidate attributes that can be embedded watermark and conducts subset segmentation and rearrangement,and then performs DWT transformation to the data subsets and the scrambled watermark image respectively.Embed the compressed low-frequency part of the watermark into the High-frequency part of the data set to achieve data fusion.Theoretical analysis and experiments show that the algorithm enjoys strong robustness and good invisibility.

关键词： digital watermark relation database wavelet transformation condensation robustness

作者: Yi Liu Juan Wang

作者单位: Office of Academic Affairs China West Normal University NanChong,China Department of Computer Science China West Normal University NanChong,China

会议类型: 国际会议

会议名称: 2013 2nd International Conference on Computer Science and Electronics Engineering(ICCSEE2013)(2013年第二届计算机科学与电子工程国际会议)

会议地点: 杭州

会议语种:英文

页码: 2817-2820

在线出版日期: 2013-03-22（万方平台首次上网日期，不代表论文的发表时间）