中文说明：图像轮廓提取变换成坐标形式，在MATLAB中可以用矩阵的形式完整调用处理图像的轮廓边缘不仅仅适用于二值图像，灰度图像也可以实现，处理应用简单
English Description：
Image contour extraction transformed into coordinates,In MATLAB may be used in the form of a matrix of complete call processing image contour edge not only applicable to binary image, a grayscale image can be realized, simple processing applications