Vector Watermarking Robust to Both Global and Local Geometrical Distortions
- Authors
- Im, Dong-Hyuck; Lee, Hae-Yeoun; Ryu, Seung-Jin; Lee, Heung-Kyu
- Issue Date
- 2008
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Keywords
- Local geometrical distortion; robust watermarking; vector watermarking; wavelet descriptor
- Citation
- IEEE SIGNAL PROCESSING LETTERS, v.15, pp 789 - 792
- Pages
- 4
- Journal Title
- IEEE SIGNAL PROCESSING LETTERS
- Volume
- 15
- Start Page
- 789
- End Page
- 792
- URI
- https://scholarworks.bwise.kr/kumoh/handle/2020.sw.kumoh/22260
- DOI
- 10.1109/LSP.2008.2006338
- ISSN
- 1070-9908
1558-2361
- Abstract
- A blind watermarking algorithm for vector graphic images is presented. The algorithm is resilient to both global and local geometrical distortions. The polygonal line is represented by the wavelet descriptor. An additive watermarking scheme is used to embed the Watermark by slightly modifying the wavelet descriptor, and that causes invisible distortions to the coordinates of the vertices. The invariant properties of the wavelet descriptor ensure that the presented algorithm is resilient against both global and local geometrical distortions. Using vector graphic images from contour maps, we demonstrate that the presented algorithm outperforms the algorithm based on the Fourier descriptor.
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Collections - Department of Computer Software Engineering > 1. Journal Articles
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