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 fully included in the white area).