说明：  应用最小二乘法为判断标准进行平面点的椭圆拟合matlab程序，程序不是很复杂，适合matlab的初学者，或者直接应用在自己的处理数据当中，相信很做图像处理的人很实用
(Application of the least squares method is a criterion elliptic plane point fitting matlab program, the program is not very complicated for beginners matlab, or direct application in their data processing which, I believe it is to do image processing, it is very practical)