基于特征函数和高阶统计量的图像信息隐藏盲检测方法

本文对Farid的盲检测算法作了改进,提出了一种更为有效的图片信息隐藏盲检测方法.该方法引入特征函数来描述图片的统计规则性,并将图片小波子带系数及其线性预测误差的特征函数的高阶统计量作为图片的特征向量来建立分类模型.实验结果表明,该方法能有效检测出含隐藏信息的图片.

Feature Function and Higher-order Statistics Based Blind Image Steganalysis

This paper presents a general blind image steganalysis method based upon Farid's method.In this method,the charac- teristic function was used,and the higher-order statistics of characteristic functions of the picture' s wavelet sub bands and its linear pre- diction error are selected as features to form a classifying model.Experiment results show that this method could detect the pictures with hidden information efficiently.