基于Personel Geodatabase的数字线划图水印技术研究

Study on the Technology of Embeding Watermark into DLG Based on Personel Geodatabase

摘要:

数字水印技术是基础地理信息产品版权保护的重要手段。该文将提出一种在Personal Geodatabase的数字线划图数据中添加水印的方法，将置乱后的水印信息添加到数据的最小外接矩形信息中，保证数据精度不受水印的影响，通过水印信息的提取技术可有效实现数据的可追溯。实验表明，该算法具有良好的鲁棒性和实用性。

Abstract:

Digital watermark technology is one of important means of protecting the copyright of digital line graph. In this paper, a method of embedding the scrambling watermark information into the data based on personel geodatabase of the minimum circumscribed rectangle has been put forwaard. It will not influence the data accuracy and effectively implement the traceability of data. Experimental results show that the algorithm has good robustness and practicality.