【摘要】 利用归一化U描述子,给出了一种针对包含多边形的矢量图来嵌入和检测水印的方法,并用实例说明了此算法可以抵抗平移、旋转、缩放和局部修改等攻击.更多还原

【Abstract】 In order to protect the copyright of vector graphics,a watermark in the contour of a graphic is embedded and a method of embedding and testing the watermark by U descriptors is suggested,which is used for polygonal vector graphics.The experimental results show that this method can resist some common manipulations,such as translation,rotation,scaling and local modification.更多还原