[英]Why can't use `cv2.cv.BoxPoints` in OpenCV (Python)?
I am a beginner in OpenCV. 我是OpenCV的初学者。 I want to make bounding box around my detected marker.
我想围绕我检测到的标记制作边界框。
Can you tell me how can I do it with OpenCV (Python)? 你能告诉我怎样才能用OpenCV(Python)做到这一点?
I'm using Python 3.6.3 with openCV 我正在使用Python 3.6.3和openCV
box =np.int0(cv2.cv.BoxPoints(marker))
Output: 输出:
Error showing cv2.cv2 has no module cv
cv2.cv.BoxPoints
was changed. cv2.cv.BoxPoints
已更改。
For OpenCV 3.x, use cv2.boxPoints
instead. 对于OpenCV 3.x,请改用
cv2.boxPoints
。
For example: 例如:
>> import numpy as np
>> import cv2
>>> cv2.__version__
'3.3.0-dev'
>>> cnt = np.array([[0,0], [1,1], [2,0]])
>>> bbox = cv2.minAreaRect(cnt)
>>> pts = cv2.boxPoints(bbox)
>>> print(pts)
[[ 9.99999940e-01 9.99999881e-01]
[ 5.96046448e-08 0.00000000e+00]
[ 9.99999940e-01 -9.99999881e-01]
[ 1.99999976e+00 0.00000000e+00]]
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