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Proceedings Paper

A robust digital watermarking in geometric attacks
Author(s): Kyu-Tae Kim; Jin-Hyug Choi; Soo-Gil Kim; Jong-Uk Choi
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Paper Abstract

We propose a new watermarking scheme that can be used to embed multiple bits and also resilient to JPEG compression and geometrical transforms such as scaling, rotation, and cropping, based on holographic watermark that allows multiple watermark recovery without original content (cover image). The holographic watermark is that Fourier transformed digital hologram, embedded into cover image in the spatial domain. The proposed method has not only increased robustness with a stronger embedding but also imperceptibility of the watermark in the evaluation process. To compare with the conventional scheme, the spread spectrum, we embedded and recovered maximum 1,024 bits that consist of binary number over PSNR (peak signal-to-noise ratio) 39dB. And also, we computed robustness with BER (bit-error rate) corresponding the above attacks.

Paper Details

Date Published: 11 January 2005
PDF: 12 pages
Proc. SPIE 5642, Information Optics and Photonics Technology, (11 January 2005); doi: 10.1117/12.570138
Show Author Affiliations
Kyu-Tae Kim, MarkAny Inc. (South Korea)
Jin-Hyug Choi, MarkAny Inc. (South Korea)
Soo-Gil Kim, Hoseo Univ. (South Korea)
Jong-Uk Choi, MarkAny (South Korea)
SangMyung Univ. (South Korea)

Published in SPIE Proceedings Vol. 5642:
Information Optics and Photonics Technology
Guoguang Mu; Francis T. S. Yu; Suganda Jutamulia, Editor(s)

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