说明：  使用区域增长的算法进行区域分割。鼠标点击图像的某个区域的某个像素，并指定染色所用颜色（红绿蓝黑），程序执行的结果是用指定的颜色把某个区域显示出来。
(Regional growth in the use of regional segmentation algorithm. A mouse click on the image of a pixel region, and specify the dye color used (black and red and green), implement the results of the procedure is designated an area of color to be displayed.)