填补圈子之间的“漏洞”。 首先尝试使用半径为7的圆盘结构元素来关闭圆形图像，除了填充孔之外，还要附上结果图像以及您观察到的任何副作用。(Fill up the "holes" in between the circles.First try closing the circle image by a disk structuring element with radius 7, attach the result image and any side-effects you observe in addition to the filling of the holes.Then do you have any idea for just filling the holes without any side-effects?)