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Proceedings Paper

Novel watermark embedding technique based on human visual system
Author(s): Yong Ju Jung; Ho Kyung Kang; Yong Man Ro
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Paper Abstract

Good watermark needs to be perceptually invisible, undetectable without key and robust to spatial/temporal data modification. In this paper, we utilize the characteristics of the human visual system (HVS) where the response of visual cortex decomposes the image spectra into perceptual channels that are bands in spatial frequency. In the HVS, the spatial frequency domain is divided into octave-bands division in the radial axis. Based on the octave-bands division, a watermark is inserted into the channels which have same number of bits of the watermark. In doing so, more bits of the watermark are embedded into significant portions, which locate in the low-middle frequency region in the frequency domain. The above watermark insertion scheme gives a robustness because the watermark of significant portion can resist against strong attack of image. Experimental results show that the proposed method based on HVS method gives more robustness to the attacks compared with the conventional DCT, wavelet and DFT watermarking methods.

Paper Details

Date Published: 1 August 2001
PDF: 8 pages
Proc. SPIE 4314, Security and Watermarking of Multimedia Contents III, (1 August 2001); doi: 10.1117/12.435431
Show Author Affiliations
Yong Ju Jung, Information and Communications Univ. (South Korea)
Ho Kyung Kang, Information and Communications Univ. (South Korea)
Yong Man Ro, Information and Communications Univ. (South Korea)


Published in SPIE Proceedings Vol. 4314:
Security and Watermarking of Multimedia Contents III
Ping Wah Wong; Edward J. Delp, Editor(s)

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