对图片提出一种基于形态学的完全自动化方法，判定哪些黑色点是背景点哪些点包括在球体之中（也就是黑色区域完全包括在白色区域内）。-The picture presented fully automated method based on morphology, to determine which is the black dot background point which points are included in the sphere among the (black region is f