应用于隐写检测中的几个统计学结论

Some Statistical Results Applied in Steganalysis

以实验为基础,对彩色数字图像相邻像素差的性质、分布进行了检验和分析,得出了数字图像相邻像素差值近似服从LP(u,a)分布且均值为0的结论,并对LP(u,a)分布中p值的分布进行了分析。这些结论对隐写分析及大量图像数据的快速检测、数字图像编码等都具有理论和实际意义。

Based on experiments ,this paper arg ues some characteristics and distributions on the difference of adjacen t pixels in color images.It gives us some valuab le results about distribution test a nd mean value test.The results are helpful for steganalysis ,fast searching and encoding for large -capacity image data in theory and practice.