DocumentCode :
1416786
Title :
Cocktail watermarking for digital image protection
Author :
Lu, Chun-Shien ; Huang, Shih-Kun ; Sze, Chwen-Jye ; Liao, Hong-Yuan Mark
Author_Institution :
Inst. of Inf. Sci., Acad. Sinica, Taipei, Taiwan
Volume :
2
Issue :
4
fYear :
2000
fDate :
12/1/2000 12:00:00 AM
Firstpage :
209
Lastpage :
224
Abstract :
A novel image protection scheme called “cocktail watermarking” is proposed in this paper. We analyze and point out the inadequacy of the modulation techniques commonly used in ordinary spread spectrum watermarking methods and the visual model-based ones. To resolve the inadequacy, two watermarks which play complementary roles are simultaneously embedded into a host image. We also conduct a statistical analysis to derive the lower bound of the worst likelihood that the better watermark (out of the two) can be extracted. With this “high” lower bound, it is ensured that a “better” extracted watermark is always obtained. From extensive experiments, results indicate that our cocktail watermarking scheme is remarkably effective in resisting various attacks, including combined ones
Keywords :
copy protection; image processing; attacks; cocktail watermarking; digital image protection; lower bound; modulation; protection; robustness; watermarking; worst likelihood; Digital images; Frequency; Image resolution; Internet; Protection; Quantization; Robustness; Spread spectrum communication; Statistical analysis; Watermarking;
fLanguage :
English
Journal_Title :
Multimedia, IEEE Transactions on
Publisher :
ieee
ISSN :
1520-9210
Type :
jour
DOI :
10.1109/6046.890056
Filename :
890056
Link To Document :
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