def yolo_boxes_to_corners(box_xy, box_wh):
"""Convert YOLO box predictions to bounding box corners."""
box_mins = box_xy - (box_wh / 2.)
box_maxes = box_xy + (box_wh / 2.)
qq=box_mins[..., 1:2] ### ###[...,1:2]只有最后一个维度会变,取第1列
q=box_mins[..., 0:1] ###只有最后一个维度会变,取第0列
qqq=np.concatenate([qq,q],axis=3)
return np.concatenate([
box_mins[..., 1:2], # y_min
box_mins[..., 0:1], # x_min
box_maxes[..., 1:2], # y_max
box_maxes[..., 0:1] # x_max
])
a=np.random.randint(5,size=(19, 19, 5, 2))
b=np.random.randint(5,size=(19, 19, 5, 2))
c=yolo_boxes_to_corners(a,b)
[...,1:2]
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