中文说明：我是一个图象处理的初学者，用matlab语言编写了一些内部的函数，实现了图象处理的功能，比如entropy，laplician，otsu，top-hat等
English Description：
I am a beginner of image processing, using MATLAB language to write some internal functions to achieve image processing functions, such as entropy, Laplacian, Otsu, top hat, etc