A Robust Watermarking Scheme Based on Maximum Wavelet Coefficient Modification and Optimal Threshold Technique
Joint Authors
Li, Chunlei
Song, Xiaowei
Liu, Zhoufeng
Zhang, Aihua
Yang, Ruimin
Source
Journal of Electrical and Computer Engineering
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-08-09
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Information Technology and Computer Science
Abstract EN
Digital watermarking has received extensive attention as a new method for copyright protection.
This paper proposes a robust watermarking algorithm based on maximum wavelet coefficient modification and optimal threshold technique.
The medium wavelet coefficients are randomly permutated according to a secret key and divided into subgroups.
We modify the maximum wavelet in each subgroup according to the embedded watermark bits, which can effectively resist attacks.
During the extraction process, an optimal threshold value calculated by iterative computation is used to extract the watermark from the watermarked image under different attacks, without using the original image or watermark.
Numerous experiments are conducted to evaluate the watermarking performance.
Experimental results demonstrate the superiority of our scheme on robustness against content-preserving operations and incidental distortions such as JPEG compression, Gaussian noise, median filter, resizing, cropping, and sharpening.
American Psychological Association (APA)
Li, Chunlei& Song, Xiaowei& Liu, Zhoufeng& Zhang, Aihua& Yang, Ruimin. 2015. A Robust Watermarking Scheme Based on Maximum Wavelet Coefficient Modification and Optimal Threshold Technique. Journal of Electrical and Computer Engineering،Vol. 2015, no. 2015, pp.1-8.
https://search.emarefa.net/detail/BIM-1068109
Modern Language Association (MLA)
Li, Chunlei…[et al.]. A Robust Watermarking Scheme Based on Maximum Wavelet Coefficient Modification and Optimal Threshold Technique. Journal of Electrical and Computer Engineering No. 2015 (2015), pp.1-8.
https://search.emarefa.net/detail/BIM-1068109
American Medical Association (AMA)
Li, Chunlei& Song, Xiaowei& Liu, Zhoufeng& Zhang, Aihua& Yang, Ruimin. A Robust Watermarking Scheme Based on Maximum Wavelet Coefficient Modification and Optimal Threshold Technique. Journal of Electrical and Computer Engineering. 2015. Vol. 2015, no. 2015, pp.1-8.
https://search.emarefa.net/detail/BIM-1068109
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1068109