对所给图像进行中值滤波，再进行5次膨胀运算。在同一窗口显示每次操作后的图像进行比较。在进行膨胀运算的同时考虑了图像边缘的处理。-On the image to the median filter, and then five times dilation. Each image after the operation were compared in the same window. During the expansion of the operation taking into accoun