Paper Title:
A DCT-Based Blind Watermarking Algorithm for Vector Digital Maps
  Abstract

This paper presented a new DCT-based watermarking algorithm for vector digital maps. A watermark bit is embedded by modifying the relationship of several high-frequency coefficients in DCT domain. To enhance data accuracy and robustness of the watermark, we proposed a Double Error Estimation method. This method allowed watermarks to be embedded when the vertices with distortion are smaller than thresholds. Experiments show that the watermarks are resilient to random noise, general geometric transformation, data scrambling and cropping. The algorithm is blind and it is easy to implement.

  Info
Periodical
Advanced Materials Research (Volumes 179-180)
Edited by
Garry Zhu
Pages
1053-1058
DOI
10.4028/www.scientific.net/AMR.179-180.1053
Citation
X. Wang, D. J. Huang, Z. Y. Zhang, "A DCT-Based Blind Watermarking Algorithm for Vector Digital Maps", Advanced Materials Research, Vols. 179-180, pp. 1053-1058, 2011
Online since
January 2011
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