椭圆拟合的相关介绍与数学运算方法，包括说明文档及源码、和测试数据-elliptical fitting related presentations and mathematical methods, including documentation, and source code, and test data

用matlab编写的进行椭圆拟合的算法，用时要自己改变图片路径(Matlab prepared by the elliptical fitting algorithm, when used to change their own picture path)