| 基于二维工程图的数字水印比例算法 |
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| 引用本文： | 汪亚顺,徐铭政.基于二维工程图的数字水印比例算法[J].南昌大学学报(工科版),2003,25(4):29-31. |
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| 作者姓名： | 汪亚顺 徐铭政 |
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| 作者单位： | 南昌大学,机电工程学院,江西,南昌,330029 |
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| 摘 要： | 针对二维工程图的特点，提出了一种数字水印方案．该方案通过修改二维工程图中各实体顶点间的距离比例来嵌入水印信息．由于该比例是一种全局特征，在视觉效果不变的情况下该比例不会发生改变，因而该水印方案对旋转、平移和均匀缩放这类攻击具有很强的健壮性．实验结果表明该方法对上述攻击具有良好的抵抗性能。
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| 关 键 词： | 数字水印 二维工程图 比例 |
| 文章编号： | 1006-0456(2003)04-0029-03 |
| 修稿时间： | 2003年5月13日 |
Scale Digital Watermarking Algorithm Based on Two- dimensional Engineering Graphics |
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| WANG Ya-shun,XU Ming-zheng.Scale Digital Watermarking Algorithm Based on Two- dimensional Engineering Graphics[J].Journal of Nanchang University(Engineering & Technology Edition),2003,25(4):29-31. |
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| Authors: | WANG Ya-shun XU Ming-zheng |
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| Abstract: | A digital watermarking scheme is presented according to the characteristics of two-dimensional engineering graphics.Watermarking information is embedded by modifying the scale of the distance between vertexes in two-dimensional engineering graphics.If the visual effect is the same,this scale will not be changed because it is a whole characteristic.This scheme is very robust against the attack such as rotation,translation,scale and so on,which is illustrated by the result of the experiment. |
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| Keywords: | digital watermarking two-dimensional engineering graphic scale |
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