Question

从这里跟进：Calculating percentage of Bounding box overlap, for image detector evaluation，我在这一行收到错误：

poly_clipped = poly.clip_to_bbox(clip_rect).to_polygons()[0]

这是错误：

 File "C:\work_asaaki\code\detection.py", line 32, in clip_boxes
    poly_clipped = poly.clip_to_bbox(clip_rect).to_polygons()[0]
  File "C:\Anaconda\lib\site-packages\matplotlib\path.py", line 909, in clip_to_bbox
    return self.make_compound_path(*paths)
  File "C:\Anaconda\lib\site-packages\matplotlib\path.py", line 328, in make_compound_path
    vertices = np.vstack([x.vertices for x in args])
  File "C:\Anaconda\lib\site-packages\numpy\core\shape_base.py", line 228, in vstack
    return _nx.concatenate([atleast_2d(_m) for _m in tup], 0)
ValueError: need at least one array to concatenate

这并不总是会发生，它是基于特定的多边形集合而发生的......我想要了解的是它究竟何时不起作用？我该如何解决这个问题？

如何修复“ValueError：至少需要一个数组连接”错误

0 个答案: