read_image (Image, 'C:/Users/Administrator/Desktop/凸性.png')
rgb1_to_gray (Image, GrayImage)
binary_threshold (GrayImage, Region, 'max_separability', 'dark', UsedThreshold)#背景只有黑白的快速二值化代码
shape_trans (Region, RegionTrans, 'convex')
shape_trans (Region, RegionTrans, 'rectangle1')#平行于坐标轴的最小外接矩形
shape_trans (Region, RegionTrans, 'rectangle2')#有角度的最小外接矩形
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