A Double- function Digital Watermarking Algorithm Based on Chaotic System and LWT
A double- function digital watermarking technology is studied and a double-function digital watermarking algorithm of colored image is presented based on chaotic system and the lifting wavelet transformation (LWT).The algorithm has realized the double aims of the copyright protection and the integrity authentication of image content. Making use of feature of human visual system (HVS),the watermark image is embedded into the color images low frequency component and middle frequency components by different means. The algorithm has great security by using two kinds chaotic mappings and Arnold to scramble the watermark image at the same time. The algorithm has good efficiency by using LWT. The emulation experiment indicates the algorithm has great efficiency and security,and the effect of concealing is really good.
fragile watermarking blind watermarking double- function digital watermarking lifting wavelet transformation chaotic sequence
Zhao Yuxia Fan Jingbo
Department of Computer Science,Shangluo University,Shaanxi,Shangluo 726000
国际会议
南宁
英文
161-166
2010-12-10（万方平台首次上网日期，不代表论文的发表时间）