An Anti-compression Watermarking Algorithm for Vector Map Data
Changqing Zhu · Journal of Zhengzhou Institute of Surveying and Mapping · 2006
Based on the characteristics of vector map data,in this paper,an anti-compression watermarking algorithm for vector map data was proposed.First,Douglas-Peucker compression was made to the data before embedding watermark.Then the watermark was embedded into the feature points.The experimentation showed that the proposed method had a good effect for the anti-compression of the vector map data.