以加权广义权距离概念为基础，结合噪声污染级别特征值法提出一种铁路环境噪声评价的新方法。
Based on the general weighted length, combined with the level characteristic value, a new method is put forward to evaluate the environmental noise of railway with fuzzy.
根据椒盐噪声污染图像灰度值取值范围的变化，提出了一种改进的加权均值滤波算法。
According to the changes of gray value range of images pollute by salt and pepper noise, this paper proposed an improved weighted mean filtering algorithm.
然后根据方向相关依赖性，采用一种边缘保持滤波方法来重构被噪声污染像素的灰度值。
According to the directional correlation-dependence, the proposed algorithm adopted an edge-preservation filtering method to reconstruct the value of the corrupted pixel.
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