TypeError: Expected Ptr<cv::UMat> for argument '%s'

[Gopalakrishna]

[Andy Hsu]

can you elaborate?

[91geek]

I have the same problem.
File "./main.py", line 29, in
cylinder_img_list = pool.starmap(utils.cylindrical_projection, [(img_list[i], focal_length[i]) for i in range(len(img_list))])
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python38\lib\multiprocessing\pool.py", line 372, in starmap
return self._map_async(func, iterable, starmapstar, chunksize).get()
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python38\lib\multiprocessing\pool.py", line 768, in get
raise self._value
TypeError: Expected Ptrcv::UMat for argument 'array'

[91geek]

User the
pip install opencv-python==3.4.9.33
Don't use the 4.2+'s opencv

[Andy Hsu]

I edited the README and state the opencv 4+ may encounter the issue.