An approach for color image gray processing based on threshold of gray scale statistic mean value and global standard deviation of each color component is presented.
给出了一种基于图像各彩色分量灰度统计特征期望值和全局标准差作为阈值的彩色图像灰度化方法。
Because of their multi scale characteristic, it's impossible to characterize machined surfaces objectively with statistic parameters measured by a measuring instrument of limited resolution.
机加工表面的多重尺度特征导致在一定分辨率测量条件下所测得的统计参数不能客观地反映被测表面的特征。
Using statistic analysis, the scale dependence of crustal strain value from crustal deformation data is studied.
从统计分析入手，研究了地形变资料求解地壳应变值的尺度相对性问题。
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