A Digital Watermarking Algorithm for Vector Map

Digital watermarking has been used for a long time in digital media, such as the information used in geographic information system (GIS) and digital vector maps, for both authentication and tracing. This work proposes a digital watermarking algorithm for vector map, which based on data configuration of vector map, combines with the theory of error correction in the field of digital communication. The theoretic analysis and experimental results show that the algorithm make the embedded watermarking induces less distortion, and it can resist some common manipulations.