全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

一种鲁棒性的2D矢量图形水印算法

DOI: 10.11834/jig.20070203

Keywords: 数字水印,矢量图形

Full-Text   Cite this paper   Add to My Lib

Abstract:

为了解决空间信息网络传输和空间信息共享的版权保护问题,提出了一种具有鲁棒性的2D矢量图形的水印算法。在GIS中,矢量图形是其最基本的表达方式,常需针对2D矢量图形的大数据集进行水印嵌入处理,本方法先将空间矢量图层按照自身所含的多边形特征进行分解;对分解后的矢量多边形进行分析,选择合适的多边形的线段,在其顶点处嵌入水印;而提取水印的过程,则是对原矢量图形和水印图形进行分析,根据嵌入水印顶点的位置或坐标值得到水印信息的序列。实验结果证明,该方法对于空间信息的常规图形操作,如矢量图层的坐标变换、平移、旋转、缩放,以及图形的剪切,点的添加删除等,均具有较强的鲁棒性。

References

[1]  Solachidis Vassilios,Nikolaidis Niikos,Pitas Ioannis.Watermarking polygonal lines fourier descriptiors[A].In:Processings of IEEE Intemational Conference on Acoustics,Speech and Signal Processing (ICASSP\'2000)[C],Istanbul,Turkey,2000,5:1955 ~ 1958.
[2]  Li Yan-yan,Xu Lu-ping.Vector graphical objects watermarking scheme in wavelet domain[J].ACTA Photonica Sinica,2004,1(33):97~100.[李媛媛,许录平.矢量图形中基于小波变换的盲水印算法[J].光子学报,2004,1(33):97~100.]
[3]  Zhang Qin,Xiang Hui,Meng Xiang-xu.Watermarking vector graphics based on complex wavelet transform[J].Journal of Image and Graphics,2005,4(10):12~15.[张琴,向辉,梦祥旭.基于复数域的图形水印方法[J].中国图象图形学报,2005,4(10):12~15.]
[4]  Sonnet Henry,Isenberg Tobias,Dittmann Jana,et al.Illustration watermarks for vector graphic[A].In..Proceedings of 11 th Paeicif Conference on Computer Graphics and Applications (PG2003)[C],Canmore,Canada,2003:73 ~ 82.
[5]  Michael Voigt.Christoph busch watermarking 2D-vector data for geographical information system[A].In:Processings of IS&T/SPIE Electronic Imaging[C],Washington,America,2002,4675:621 ~628.
[6]  Michael Voigt,Christoph Busch.Feature-based watermarking of 2Dvector data[A].In:Processings of SPIE[C],Santa Clara,2003,5020:359 ~ 366.
[7]  Ryutarou Ohbuchi,Hiroo Uedda,Shuh Endoh.Robust watermarking of vector digital maps[A].In:Processings of IEEE International Conference on Multimedia and Expo 2002 (ICME 2002)[C],Lausanne,Switzerland,2002,8:1 ~ 4.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133