Title :
A multi-bit digital watermarking algorithm with side information
Author :
Na Xu ; Changsheng Liu ; Ying Wang
Author_Institution :
Coll. of Econ. & Manage., Hebei Univ. of Sci. & Technol., Shijiazhuang, China
Abstract :
In this paper, a multi-bit digital watermarking algorithm with side information has been proposed, which use the max linear correlation value between the corresponding blocks of cover work and watermarking coding signals as the side information to optimize the embedding region and detection critical value; use the linear correlation value between the cover work and watermark coding signals as side information to adjust the intensity of watermarking embedding in order to improve the effectiveness of watermark system; use the perceptual character of cover work as side information participate in the watermarking coding and embedding process to control the fidelity of watermark system. The result of test indicates that the algorithms which are composed here can not only effectively improve the effectiveness of watermark system but also own the better robustness.
Keywords :
correlation methods; image coding; image watermarking; optimisation; coding signal watermarking; linear correlation value; multibit digital watermarking algorithm; side information; watermark system fidelity control; Algorithm design and analysis; Bit error rate; Correlation; Educational institutions; Robustness; Signal processing algorithms; Watermarking; digital watermarking; effectiveness; perceptual model; robustness; side information;
Conference_Titel :
Electronic and Mechanical Engineering and Information Technology (EMEIT), 2011 International Conference on
Conference_Location :
Harbin, Heilongjiang, China
Print_ISBN :
978-1-61284-087-1
DOI :
10.1109/EMEIT.2011.6023734
