Research on Lossless Digital Watermarking Algorithm on Digital Vector Maps
Lossless digital watermarking algorithm based on attribute information has been presented based on the location information and coordinate information of vertex in vector maps. With the knowledge of data structure and file structure of digital vector maps, its attribute information has been presented in detail and a lossless scheme with zero-bit dynamical extension has been proposed. On the basis of this, space clustering analysis with grid density was used to increase robustness of the scheme.
C. Huang and R. Dai, "Research on Lossless Digital Watermarking Algorithm on Digital Vector Maps", Advanced Materials Research, Vols. 268-270, pp. 1132-1137, 2011