有效抑制噪声的算法，通过图像自身的荣誉信息，设定不同的权值，把灰度在所求像素灰度附近的像素灰度进行加权平均。-Effective noise suppression algorithm, through the image of its own honor information, the right to set different values for the gray pixels in the vicinity of the pixel gray gray weighted averag