Algorithm of Digital Watermark Based on Wavelet

摘要：

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

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

作者: Siyu Lai Juan Wang

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

会议类型: 国际会议

会议名称: 2012 2nd International Conference on Computer and Information Applications(ICCIA2012)(2012第二届计算机和信息应用国际会议)

会议地点: 太原

会议语种:英文

页码: 1592-1595

在线出版日期: 2012-12-08（万方平台首次上网日期，不代表论文的发表时间）