面向连续矢量图的简易数字水印方案  

Simple digital watermark scheme for continuous vector graphics

作　　者：王涛[1] 

机构地区：[1]华南师范大学计算机学院,广东广州510631

出　　处：《计算机工程与设计》2013年第5期1609-1614,1667,共7页Computer Engineering and Design

基　　金：广东省科技计划基金项目(2009B090300326);广州市科技攻关专项基金项目(2011J4300041)

摘　　要：为了给矢量动画提供一种实现简单、对原图影响小、计算量低的数字水印方案,提出了以连续矢量图帧来描述矢量动画的格式。基于此描述格式,利用连续矢量图帧中特定图形元素颜色轻微修改,实现了数字水印数据的嵌入;通过特定图形元素帧间颜色值的差异分析,可以提取并验证数字水印。分析结果表明,该方案可以用简单和低计算成本的方式实现面向连续矢量图的数字水印嵌入与检测。To introduce a simple, slight change on origin content, low computing cost digital watermarking scheme for vector animation, a format of vector animation with continuous vector graphics frames is proposed. Based on this format, a way to embed digital watermark by slightly change special primitives＇ color frame by frame is proposed, as well as a way to extract and verify digital watermark by analyzing inter-frame different on primitives＇ color is realized. Discussion shows this scheme can embed and verify digital watermark on continuous vector graphics in a simple and low cost way.

关 键 词：计算机图形 矢量图 数字水印 连续矢量图 帧间差异 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]