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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 the experiments, the properties and distributions of adjacent pixels in color digital image are tested and analyzed. The conclusion that the difference between adjacent pixels in digital image obeys LP (u, a) distribution and the mean is 0 The distribution of p value in LP (u, a) distribution is analyzed. These conclusions have theoretical and practical significance for steganalysis and rapid detection of a large number of image data, digital image coding and the like.