关键词：打印机； 文字图像； 墨料； 相关系数； 模糊鉴别； 误差分析
中图分类号：TP391 文献标志码：A 文章编号：1001-3695(2008)08-2390-03
Error analysis of printer fuzzy identification based on correlative
specific area of character image & black-powder FTIR graphics
WANG Ning1, 2, HAN Guo-qiang1
(1.School of Computer Science & Engineering, South China University of Technology, Guangzhou 510641, China;2. Guangzhou Public Security Bureau, Guangzhou 510030, China)
Abstract:This paper analyzed the error of two methods of printer fuzzy identification by a case of laser printer identification. By error analysis of single method and united method, it evaluated the reliability of two methods about printer identification. The first method, got the type of printer by fuzzy evaluation of correlative specific area of character image. The second method, idantified the printer by the similar FTIR spectrum graphics of black-powder of laser printer based on the wavenumbers, the first derivative, the second derivative and the self-deconvolution of FTIR spectrum graphics. With the calculation of correlation of above two methods, the error was analyzed by fuzzy synthetic evaluation about them. The result showed that the difference was obvious between single method and united method. ......