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Print-and-Scan Resilient Watermarking through Polarizing DCT Coefficients

Chun-Hung CHEN, Yuan-Liang TANG, Wen-Shyong HSIEH

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Summary :

Digital watermarking techniques have been used to assert the ownerships of digital images. The ownership information is embedded in an image as a watermark so that the owner of the image can be identified. However, many types of attacks have been used in attempts to break or remove embedded watermarks. Therefore, the watermark should be very robust against various kinds of attacks. Among them, the print-and-scan (PS) attack is very challenging because it not only alters the pixel values but also changes the positions of the original pixels. In this paper, we propose a watermarking system operating in the discrete cosine transform (DCT) domain. The polarities of the DCT coefficients are modified for watermark embedding. This is done by considering the properties of DCT coefficients under the PS attack. The proposed system is able to maintain the image quality after watermarking and the embedded watermark is very robust against the PS attack as well.

Publication
IEICE TRANSACTIONS on Information Vol.E96-D No.10 pp.2208-2214
Publication Date
2013/10/01
Publicized
Online ISSN
1745-1361
DOI
10.1587/transinf.E96.D.2208
Type of Manuscript
PAPER
Category
Information Network

Authors

Chun-Hung CHEN
  National Sun Yat-sen University
Yuan-Liang TANG
  Chaoyang University of Technology
Wen-Shyong HSIEH
  National Sun Yat-sen University,Shu-Te University

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