中文说明： 图片中的细胞进行分割计数，首先对图片进行预阈值选择，然后进行二值化。使用膨胀和腐蚀的概念对图片进行处理， 使得细胞能够分开，最后用连通域的概念进行计数
English Description：
The cells in the image are segmented and counted. Firstly, the image is pre thresholded, and then binarized. Using the concept of expansion and corrosion to process the image,