A High Quality Robust Digital Watermarking by Smart Distribution Technique and Effective Embedded Scheme

Yu-Ting PAI
Shanq-Jang RUAN

Publication
IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences   Vol.E90-A    No.3    pp.597-605
Publication Date: 2007/03/01
Online ISSN: 1745-1337
DOI: 10.1093/ietfec/e90-a.3.597
Print ISSN: 0916-8508
Type of Manuscript: Special Section PAPER (Special Section on Multimedia and Mobile Signal Processing)
Category: Image
Keyword: 
watermark,  data hiding,  copyright protection,  permutation mapping,  

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Summary: 
In recent years, digital watermarking has become a popular technique for hiding information in digital images to help protect against copyright infringement. In this paper we develop a high quality and robust watermarking algorithm that combines the advantages of block-based permutation with that of neighboring coefficient embedding. The proposed approach uses the relationship between the coefficients of neighboring blocks to hide more information into high frequency blocks without causing serious distortion to the watermarked image. In addition, an extraction method for improving robustness to mid-frequency filter attacks is proposed. Our experimental results show that the proposed approach is very effective in achieving perceptual imperceptibility. Moreover, the proposed approach is robust to a variety of signal processing operations, such as compression (JPEG), image cropping, sharpening, blurring, and brightness adjustments. The robustness is especially evident under blurring attack.

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