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Proceedings Paper

New watermarking method using convex chain
Author(s): Hong-Yu Wang; Hong-Chuan Yu; Jun-Hui Deng
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Paper Abstract

Digital image information security is a new research topic which is appearing with the rapid progress of computer network and multimedia. Becoming main measure of information representation, digital image meets the problem how to protect the security of the information it carries. In particular, how to keep the information after kinds of image processing procedure is still an open problem which is not solved. The common way to hide information into an image is to change the values of certain places in the space domain or frequency domain. The novel technique introduced in this thesis, also being a new idea, is to use the topological characteristics of certain chosen points, in detail, the sequence of points along a convex-chain, in the picture to carry information. And this makes the information quite hard to be destroyed by many kinds of image processing.

Paper Details

Date Published: 31 July 2002
PDF: 7 pages
Proc. SPIE 4875, Second International Conference on Image and Graphics, (31 July 2002); doi: 10.1117/12.477178
Show Author Affiliations
Hong-Yu Wang, Tsinghua Univ. (China)
Hong-Chuan Yu, Tsinghua Univ. (China)
Jun-Hui Deng, Tsinghua Univ. (China)

Published in SPIE Proceedings Vol. 4875:
Second International Conference on Image and Graphics
Wei Sui, Editor(s)

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