中文说明：
基于区域生长，（区域增长）的目标分割方法，简单实用，易上手，m语言编写，易懂易用，没有调用内部函数，方便以后改写为c语言代码，请尽情享用。
English Description：
The target segmentation method based on region growth (region growth) is simple, practical and easy to use. It is written in M language, easy to understand and use, and does not call internal functions. It is convenient to rewrite it into C language code in the future. Please enjoy it