Algorithm of Digital Watermark Based on Wavelet

摘要：

Analyze a human visual model based wavelet domain digital watermark algorithm and improvd it.First conduct Muti-level wavelet decomposition on original image and modify medium frequency coefficient,and then adapt the algorithm to embed the watermarking into the image.The experiment shows that the watermark embedded image enjoys better imperceptibility and robustness to JPEG compression,add gaussian noise,contrast enhancement e.t triditional image processing operations.

关键词： digital watermarking human visual system discrete wavelet transform algorithm

作者: Wang Juan Lai Siyu

作者单位: Department of Computer Science China West Normal University NanChong,China Department of Medical Image North Sichuan Medical College NanChong,China

会议类型: 国际会议

会议名称: 2011 3rd International Conference on Computer and Network Technology(ICCNT 2011)(2011第三届IEEE计算机与网络技术国际会议)

会议地点: 太原

会议语种:英文

页码: 130-133

在线出版日期: 2011-02-26（万方平台首次上网日期，不代表论文的发表时间）