Title :
A blind watermarking of vector graphics images
Author :
Li, Yuanyuan ; Xu, Luping
Author_Institution :
Dept. of Electron. Eng., Xidian Univ., Xi´´an, China
Abstract :
A blind algorithm for watermarking of vector map is presented in this paper. Only the magnitude of the DWT coefficients of vertices extracted from the map is altered to embed the watermark. Watermark can be extracted without original image because the embedding procedure is based on the relationship between the watermark value and the DWT coefficients. Experiment results show that this algorithm is robust to some image processing operations.
Keywords :
discrete wavelet transforms; image coding; image processing; watermarking; DWT coefficient; blind algorithm; blind watermarking; image processing; vector graphics image; vector map; Computational intelligence; Graphics; Watermarking;
Conference_Titel :
Computational Intelligence and Multimedia Applications, 2003. ICCIMA 2003. Proceedings. Fifth International Conference on
Print_ISBN :
0-7695-1957-1
DOI :
10.1109/ICCIMA.2003.1238163
