We develop some methods for evaluating the security of LSB steganography using randomness testand two-dimension self-correlation function.4) Evaluation of the statistical visibility of information hiding algorithms.
提出了基于二维自相关函数径向谱和随机性检验(包括顺序检验、游程检验和一维自相关检验)的LSB信息隐藏安全性评估方法。
参考来源 - 图象信息隐藏的理论模型与若干关键技术的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
Meaning: The self-correlation function and power spectrum density Function of a power-typed signal compose a FT pair.
上式表明： 功率型信号的自相关函数与其功率谱密度函数构成傅立叶变换对。
Physical meaning: the self-correlation function and the energy spectrum density function compose a Fourier transform pair.
物理含义：能量信号的自相关函数与能量谱密度函数构成傅立叶变换对。
At present, there are three methods to select delay time: self-correlation function method the average displacement method and mutual information method.
目前选择重构延迟时间的方法有三种自关联函数法，平均位移法及互信息法。
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