Matlab编程考试的一道题。随机生成50个点，计算它的一个凸包，并计算凸包的面积-Matlab programming test a question. Randomly generated 50 points, calculate a convex hull, and calculate the area of ??convex hull

水平集算法分割图像源代码，一种是从内到外分割，一种是外到内分割(Level set segmentation image source code, there are two kinds, one is from inside to outside, and the other is from outside to inside Matlab convhull)

水平集代码，从网上找到的，没有什么特别复杂的。(Level set segmentation image source code, there are two kinds, one is from inside to outside, and the other is from outside to inside Matlab convhull)