DocumentCode :
1682089
Title :
Watermarking with dirty paper codes
Author :
Miller, Matt L.
Author_Institution :
NEC Res. Inst., Princeton, NJ, USA
Volume :
2
fYear :
2001
Firstpage :
538
Abstract :
Several researchers have begun to view watermarking as communication with side information at the transmitter. Theoretical work on this type of communication suggests it is best to use codes that represent each message with many, alternative codewords. Such codes are referred to here as dirty-paper codes, in reference to Costa´s (1983) article. The present paper describes an experiment in which a correlation-based watermarking system is modified to employ dirty-paper codes. Test results show that, as the number of watermark patterns representing a given message increases from 1 (as in a conventional system) to 1024, the watermark can be embedded with increasing fidelity. This improvement in fidelity allows the use of low-frequency patterns, which are inherently more robust than white noise
Keywords :
codes; copy protection; image coding; image representation; security of data; codewords; correlation-based watermarking system; data payloads; dirty-paper codes; low-frequency patterns; message representation; side information; watermark patterns; white noise; Communication systems; Context; Gaussian noise; National electric code; Noise robustness; System testing; Transmitters; Watermarking; White noise; Writing;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Image Processing, 2001. Proceedings. 2001 International Conference on
Conference_Location :
Thessaloniki
Print_ISBN :
0-7803-6725-1
Type :
conf
DOI :
10.1109/ICIP.2001.958547
Filename :
958547
Link To Document :
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