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Proceedings Paper

Robust scheme for oblivious detection of watermarks/data hiding in still images
Author(s): Mahalingam Ramkumar; Ali Naci Akansu
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Paper Abstract

We propose a novel, robust scheme for data hiding/oblivious detection of watermarks in still images. While the low- frequency image coefficients are robust, they cannot be used effectively for oblivious detection methods, when correlative processing is employed for detection. However, in the proposed non-linear detection method, the robust low- frequency bands can be used effectively. Thus the proposed method turns out to be more robust than methods employing linear addition and correlative extraction of the signature. We report the results obtained for 7 test images in terms of probability of error in detection of the watermark/hidden bits.

Paper Details

Date Published: 22 January 1999
PDF: 8 pages
Proc. SPIE 3528, Multimedia Systems and Applications, (22 January 1999); doi: 10.1117/12.337437
Show Author Affiliations
Mahalingam Ramkumar, New Jersey Institute of Technology (United States)
Ali Naci Akansu, New Jersey Institute of Technology (United States)


Published in SPIE Proceedings Vol. 3528:
Multimedia Systems and Applications
Andrew G. Tescher; Bhaskaran Vasudev; V. Michael Bove; Barbara Derryberry, Editor(s)

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