QQ客服 官方微博 反馈留言

	A robust binary text digital watermarking algorithm for print-scan process
	Bin, He ; Yuqian, W. ; Kai, Kang ; Wei, Guo
	2009
英文摘要	Considering the simple and weak structure of binary texts , this paper proposes a novel algorithm which combines the methods of Block Partition , Discrete Cosine Transform(DCT) and pixel flipping . Based on appropriate block partition ,the matrix of each block's characteristic values is transformed into the DCT domain , and a DCT coefficient matrix generated . Then , some high-frequency DCT coefficients are modified according to a threshold . Depending on the change of characteristic values before and after the Inverse Discrete Cosine Transform(IDCT) ,we can manipulate 'flippable' pixels to embed an amount of data without causing noticeable artifacts. The hidden data can be extracted without using the original image, and can also be accurately extracted after high-quality printing and scanning, even reprography . ? 2008 IEEE.; EI; 0
语种	英语
DOI标识	10.1109/CSIE.2009.830
内容类型	其他
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/162043]
专题	计算机科学技术研究所
推荐引用方式 GB/T 7714	Bin, He,Yuqian, W.,Kai, Kang,et al. A robust binary text digital watermarking algorithm for print-scan process. 2009-01-01.

个性服务

查看访问统计

相关权益政策

暂无数据

收藏/分享

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。