Notice the odd roughness of the dense histogram in the region around 7-12 degrees, with both very high frequency of some measurements and unexpectedly low frequencies of others.
注意，在稠密直方图中 7-12 度附近出现了偶然性的不平滑，有一些温度频率非常高， 也有一些频率出人意料地低。
Statistics histogram data processing scheme is designed. Standard deviation of frequency modulation is found out according to normal distribution characteristics.
设计了统计直方图数据处理方案，按照正态分布的特性找出了寄生频率调制的标准偏差。
Proved—theoretically and experimentally—the effectiveness of the moments in frequency domain of histogram as features for steganalysis.
从理论和实验上论证直方图频域矩用于隐写分析的有效性。
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