DocumentCode
1657510
Title
Digital Watermarking Technique for Images Based on DWT
Author
Zhang YongPing
Author_Institution
Dept. of Fire Protection Eng., Chinese People´s Armed Police Forces Acad., Langfang, China
fYear
2011
Firstpage
1
Lastpage
4
Abstract
A novel watermarking positioning algorithm is proposed in this paper which uses features of lower frequency sub-band of wavelet coefficient to limit the positions for watermarking embedding. The positions are taken as indexes of points for embedding watermarking and map these positions to medium frequency space to carry watermarking. Detection of watermarking is free of original image and the balance between transparency and robustness are realized.
Keywords
discrete wavelet transforms; image watermarking; discrete wavelet transform; image digital watermarking technique; medium frequency space; watermarking embedding; watermarking positioning algorithm; Digital images; Image resolution; Robustness; Watermarking; Wavelet coefficients;
fLanguage
English
Publisher
ieee
Conference_Titel
Wireless Communications, Networking and Mobile Computing (WiCOM), 2011 7th International Conference on
Conference_Location
Wuhan
ISSN
2161-9646
Print_ISBN
978-1-4244-6250-6
Type
conf
DOI
10.1109/wicom.2011.6040630
Filename
6040630
Link To Document