说明：  Mean Shift算法的具体步骤，Mean Shift算法可以分为以下4步： 1.选择窗的大小和初始位置. 2.计算此时窗口内的Mass Center. 3.调整窗口的中心到Mass Center. 4.重复2和3，直到窗口中心"会聚"，即每次窗口移动的距离小于一定的阈值。
(Mean Shift algorithm specific steps, Mean Shift algorithm can be divided into the following four steps: 1. Selection window size and initial position. 2. Calculation time window of Mass Center. 3. To adjust the center of the window to the Mass Center. 4 . Repeat 2 and 3, until the window center " convergence" , that is moved every time the window is smaller than a certain distance threshold.)