An adaptive robust digital watermarking algorithm based on DCT for vector map is proposed in this paper.
2)提出了一种自适应的基于DCT变换的鲁棒矢量地图数字水印嵌入算法和提取算法。
This system adopts plug-in to carry out the WebGIS . User can browse the vector map in IE or Navagator.
本系统采用了插件实现方式以实现B/S模式的应用,在客户端浏览矢量地图,增强了用户与界面之间的交互性。
The map display mode uses the scheme based on vector map and grid map. Thus the better combination of functions with load can be gained through respective strongpoints.
客户端采用了基于浏览器和Java小应用程序的结合方案,而地图的显示方式也采用结合矢量图和栅格图的方案,这样可以利用各自的优点来达到更好的功能/负载结合点。