QRCodeEncoder segfault - Githubissues

opencv / opencv

Open Source Computer Vision Library

https://opencv.org

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QRCodeEncoder segfault #25588

Closed neonknight closed 1 month ago

neonknight commented 1 month ago

System Information

OpenCV python version: 4.9.0.80 (headless, via pip) Operating System / Platform: Debian 12.5 Python version: 3.11.2

Detailed description

When trying to create a QR code using QRCodeEncoder the python shell/application is terminated with Segmentation fault

Steps to reproduce

python3 -m venv opencv
. opencv/bin/activate
pip install opencv-python-headless
pip install opencv-contrib-python-headless
python3

import cv2
encoder = cv2.QRCodeEncoder()
qrcode = encoder.encode('foobar')

Issue submission checklist

[X] I report the issue, it's not a question
[X] 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
[X] There is reproducer code and related data files (videos, images, onnx, etc)

asmorkalov commented 1 month ago

C++ code use ::create() factory to create the object. Python code have to call QRCodeEncoder_create() to achieve the same result. It's true for classes inherited from cv::Algorithm.