Vector Map Watermarking Evaluation Based on Certainty Factor

Abstract

Watermarking appraisement plays an important role in checking the validity in a watermark system. So far, it is regrettable that there is not any comprehensive appraisement proposed for watermarking technology. In general, test software and methods can only analyze a few factors influencing the watermarking algorithm, which are lacking sufficient credibility. So, a comprehensive watermarking appraisement model based on the theory of certainty factor is proposed in this paper, which firstly discusses the relations of factors and operations contained, which all be assigned weight value. Through reasoning and analysis, every watermark algorithm can be quantified, thus, merits and drawbacks of watermark algorithms are obvious, and it is also easy to achieve the optimal watermark algorithm.