Image watermark resisted to geometric attacks with high capacity and   blind detection

CORC > 北京大学 > 信息科学技术学院

	Image watermark resisted to geometric attacks with high capacity and blind detection
	Zhu Bocheng ; Wu Hongtao
刊名	chinese journal of electronics
	2007
关键词	image watermark geometry attack high watermark capacity blind detection ROBUST DISTORTIONS
英文摘要	It's desirable to achieve high capacity and blind detection of watermarking system if it could resist geometric attacks. After the rotation angle of image is blind detected, a novel DFT-based algorithm is proposed in this paper. It modulates watermark information into relationship of image spectrum amplitudes in different positions. Used the parameters of geometry transform blind detected, watermarked image spectrum amplitudes in corresponding positions would be computed through the analysis how this positions change. The watermark information can be detected accurately without original cover. Testing images are embedded 480bits watermark. The bits error rate of watermark is obtained in several cases while watermarked images are suffering from geometric attacks or general attacks such as low-pass filter, noise additional, lossy compress, et al. The results prove the algorithm is efficient and valuable.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000243961700019&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Engineering, Electrical & Electronic; SCI(E); EI; 1; ARTICLE; 1; 88-92; 16
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/292117]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Zhu Bocheng,Wu Hongtao. Image watermark resisted to geometric attacks with high capacity and blind detection[J]. chinese journal of electronics,2007.
APA	Zhu Bocheng,&Wu Hongtao.(2007).Image watermark resisted to geometric attacks with high capacity and blind detection.chinese journal of electronics.
MLA	Zhu Bocheng,et al."Image watermark resisted to geometric attacks with high capacity and blind detection".chinese journal of electronics (2007).