重复步骤2,直到遍历完所有的种子点
seeds = [4,7,9,10, 1,7,9,16] #第一次步骤2,标记4
7的周围有12,4,小于min_points,seeds不扩展
![在这里插入图片描述](https://img-blog.csdnimg.cn/c35992d139c041e29dc499314042fab1.jpeg#pic_center)
seeds = [4,7,9,10, 1,7,9,16] #第二次步骤2,标记7
9的周围有1,4,3,大于min_points,seeds扩展
![在这里插入图片描述](https://img-blog.csdnimg.cn/a7fb5060bc514cd891f40e93035b7759.jpeg#pic_center)
seeds = [4,7,9,10, 1,7,9,16,1,4,3] #第三次步骤2,标记9
10的周围有1,6,7,大于min_points,seeds扩展
![在这里插入图片描述](https://img-blog.csdnimg.cn/caf7c9fb46754362913c91adb53edc90.jpeg#pic_center)
seeds = [4,7,9,10, 1,7,9,16,1,4,3,1,6,7] #第四次步骤2,标记10
1已经标记过,继续下一个点
seeds = [4,7,9,10, 1,7,9,16,1,4,3,1,6,7]
7已经标记过,继续下一个点
seeds = [4,7,9,10, 1,7,9,16,1,4,3,1,6,7]
9已经标记过,继续下一个点
seeds = [4,7,9,10, 1,7,9,16,1,4,3,1,6,7]
16的周围有12,4,小于min_points,seeds不扩展
seeds = [4,7,9,10, 1,7,9,16,1,4,3,1,6,7]
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重复进行画圈、标记