轮廓提取的目的就是获得图像的外部特征,是进行图像分析的有用手段之一.二值图像轮廓提取的算法非常简单,就是掏空内部点:如果原图中有一点为黑,且它的8个相临点都是黑色时,则将该黑点删掉-Contour extraction is to obtain the purpose of the external characteristics of the image, is useful for image analysis means of the binary image contour extrac