System Information

Ubuntu 11.4.0-1ubuntu1~22.04
opencv-contrib-python 4.10.0.84
opencv-python-headless 4.10.0.84
python 3.8.20

Detailed description

python 111.py
Traceback (most recent call last):
File "111.py", line 11, in
thinned = cv2.ximgproc.thinning(thresh, cv2.ximgproc.THINNING_ZHANGSUEN)
AttributeError: module 'cv2.ximgproc' has no attribute 'thinning'

Steps to reproduce

import cv2
import numpy as np

img = cv2.imread('/home/mambauser/arrow-detection/ReactionDataExtractor/testimage/1.png', 0)

ret, thresh = cv2.threshold(img, 127, 255, cv2.THRESH_BINARY)

thinned = cv2.ximgproc.thinning(thresh, cv2.ximgproc.THINNING_ZHANGSUEN)

cv2.imshow('image', np.hstack((thresh, thinned)))
cv2.waitKey(0)
cv2.destroyAllWindows()

Issue submission checklist

• I report the issue, it's not a question
• I checked the problem with documentation, FAQ, open issues, forum.opencv.org, Stack Overflow, etc and have not found any solution
• I updated to the latest OpenCV version and the issue is still there
• There is reproducer code and related data files (videos, images, onnx, etc)