NDLI: Robust oblivious digital watermarking using image transform phase modulation

Content Provider	IEEE Xplore Digital Library
Author	Alturki, F. Mersereau, R.
Copyright Year	2000
Description	Author affiliation: Center for Signal & Image Process., Georgia Inst. of Technol., Atlanta, GA, USA (Alturki, F.)
Abstract	Digital watermarking is the process of secretly embedding a short sequence of information containing owner identity or copyright information inside a digital signal, without changing its perceptual quality. The information is embedded in a way that is difficult to erase. We present a new oblivious digital watermarking method for copyright protection of still images. The technique is based on modifying the sign of a subset of low frequency, image transform coefficients with high to moderate magnitudes. These transforms include the DCT, DFT and Hadamard transforms. Watermark detection is done in an oblivious way. The robustness to a number of standard image processing attacks is demonstrated using the criteria of the latest StirMark benchmark test. The technique can be used also for other applications such as image fingerprinting.
Starting Page	84
Ending Page	87
File Size	460879
Page Count	4
File Format	PDF
ISBN	0780362977
ISSN	15224880
DOI	10.1109/ICIP.2000.899233
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2000-09-10
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Robustness Watermarking Phase modulation Signal processing Copyright protection Frequency Discrete cosine transforms Image processing Benchmark testing Fingerprint recognition
Content Type	Text
Resource Type	Article

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