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Proceedings Paper

Adaptive two-dimensional image watermarking system
Author(s): Kaixiang Yi; Jiaoying Shi
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Paper Abstract

This paper proposes an adaptive 2D image watermarking algorithm in DCT domain. In order to embed an image watermark, we split the image watermark into blocks and transform them into DCT domain. Then these DCT coefficients are quantized and adjusted. Finally, we choose the non-zero DCT coefficients of each block to constitute the watermark. We split the cover image into blocks and classify these blocks based on the human visual system, and transform them into DCT domain. According to the classification, the watermark components are enhanced with different intensity and are embedded into some low-frequency DCT coefficients of the cover image. The experimental results are excellent.

Paper Details

Date Published: 1 August 2001
PDF: 8 pages
Proc. SPIE 4314, Security and Watermarking of Multimedia Contents III, (1 August 2001); doi: 10.1117/12.435428
Show Author Affiliations
Kaixiang Yi, Zhejiang Univ. (China)
Jiaoying Shi, Zhejiang Univ. (China)

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

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