提取灰度图像轮廓。实现了图像二值化，自适应阈值选择，利用数学形态学修补缺陷，并与经典轮廓提取算子结果进行了比较。

comptervision.m为主文件

extraction.m为轮廓提取函数

jpg为测试图像-Grayscale image contour extraction. Achieve a binary image, adaptive threshold selection, the use of mathematical morphology repair defects, and with the classic contour extraction operator results were compared.