A Novel Digital Watermarking Algorithm for Medical Color Image

摘要：

　　In this paper,we propose a novel medical color image digital watermarking algorithm,which can realize watermark capacity,transparency and robustness effective compromise.We encrypt the watermark image by Arnold Transform at first and then take it into a random sequence.The principal component of medical image is divided into some sub-blocks with 4×4 and each block is transformed by DCT.One bit of watermark is embedded by comparing the size of specific DCT coefficients in the adjacent sub-blocks.Watermark can be extracted without the original medical image.The experimental results show that the digital watermarking algorithm has a high transparency and big capacity as well as certain robustness.

关键词： medical color image watermarking blind detection transparency PCA

作者: Xinde Sun

作者单位: Department of Computer Science and Application, Zhengzhou Institute of Aeronautical Industry Management,Zhengzhou 450015,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: 1385-1388

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）