In course of filtering, it can get rid of other noise points round the noise point being filtered with the array.

滤波过程中，根据噪声记录数组的信息，剔除噪声点周围的其它噪声点的灰度信息，使噪声点的灰度值得到较好的还原。

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If it is a noise point, the value is replaced by rank-ordered mean (ROM) of the filter window during noise removal.

最后以滤波窗口内像素的灰度排序均值(ROM)替换噪声点的灰度值。

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This algorithm set threshold to distinguish impulse noise point, through variance rate of gray level. The information of every impulse noise point is noted in a array.

该算法通过灰度变化率设置阈值判别脉冲噪声点，并将脉冲噪声点信息记录到与图像对应的噪声记录数组中。

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Filter out the marketing noise and focus on its superb performance as a reliable point-and-shoot and now you've got a winner.

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The point is that it was NOT APPLE making that noise around Apple devices and strategy.

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But Dr Emanuel's point is that even the worst predicted rise will be lost as noise in the variation in hurricane numbers from year to year.

ECONOMIST: Eye on the storm | The