说明：  交互式阈值分割算法图像处理，选取读入一份彩色图像，在运行Untitled.m程序时先用鼠标交互的选取一个颜色区域作为你要与其他色彩分割的目标，进行分割，鼠标选取好后，按ENTER健后出现分割节后。
(Interactive image processing threshold segmentation algorithm to select a color image read at run Untitled.m program interacts with the mouse select a color region with other colors as you want to split the goal, segmentation, mouse selection is completed, Press ENTER after health division Festival.)