摘要
在分析经典Farid高阶统计量模型基础上,采用离散Haar小波对其线性预测模型相关性区域进行定位描述,并改进其偏向不一致缺陷,通过数学推导提出R-Farid线性预测模型;并提出了R-Farid高阶统计量模型。实验结果显示,其具有更好的隐写检测效果。
Through theoretical analyzing the classical Farid high order statistic linear prediction model based on discrete Haar wavelet, a R-Farid linear prediction model is proposed by revising its inconsistent relativity area, and then it is defined as Farid high order statistic model, a R-Farid high order statistic model is designed. Experimental results show that it really improves the steganalysis accuracy rate.
出处
《武汉大学学报(信息科学版)》
EI
CSCD
北大核心
2008年第10期1007-1010,共4页
Geomatics and Information Science of Wuhan University