cv2.connectedComponentsWithStats raises weird error on latest version

[SHA65536]

Actual behaviour

When using cv2.connectedComponentsWithStats I am presented with a mysterious error

nLabels, labels, stats, centroids = cv2.connectedComponentsWithStats(text_score_comb.astype(np.uint8), connectivity=4)
cv2.error: Unknown C++ exception from OpenCV code

Took me a long time to figure out what's wrong because of the vague error message...
Finally solved it by switching back to version 4.5.4.60

Steps to reproduce

Windows 10 64bit
opencv-python 4.5.5.62
Use the cv2.connectedComponentsWithStats function with the latest opencv-python version

[alalek]

Lets track it here: opencv/opencv#21366

[noxqs]

For me removing the parameter connectivity=4 from cv2.connectedComponentsWithStats fixed it. This is in cojunction with easyOCR.

[robertschweizer]

FYI: This still fails with the latest release opencv-python 4.5.5.64, because it does not include a newer OpenCV C++ library than 4.5.5.62.

The OpenCV C++ library has been fixed, but not released yet.

[rinnegann]

For me removing the parameter connectivity=4 from cv2.connectedComponentsWithStats fixed it. This is in cojunction with easyOCR.

Thanks!,This has worked for me.

[GeraldLJW]

For me removing the parameter connectivity=4 from cv2.connectedComponentsWithStats fixed it. This is in cojunction with easyOCR.

thanks！！！！

[bhumika-cashify]

For me removing the parameter connectivity=4 from cv2.connectedComponentsWithStats fixed it. This is in cojunction with easyOCR.

thankyou so much.

[Nadinegp]

For me removing the parameter connectivity=4 from cv2.connectedComponentsWithStats fixed it. This is in cojunction with easyOCR.

Where can I find the file? what is it called?

[mikeboharsik]

For anyone else experiencing this issue, @robertschweizer seemed to have it right. I ran the following command:

pip install --upgrade opencv-contrib-python

and the exception went away. The suggestion from @noxqs works as well but obviously is far less ideal than having the packages "fix" themselves.