OpenCV - Ask OpenCV Questions, Get OpenCV Answers
Nov 3, 2025 · OpenCV (Open Source Computer Vision Library) is an open source computer vision and machine learning (AI) software library.
Download haarcascade_frontalface_default.xml - OpenCV Q&A Forum
Jul 26, 2020 · How do I do this from github? I'm using Windows/Pycharm
Unable to compile CUDA Version - Python - OpenCV
Apr 25, 2025 · Hello guys. I’m during 3 days trying to make opencv to work with CUDA. I already have CUDA installed, cudnn etc. What happens: After making all process described in some youtube …
Can't open/read file: check file path/integrity - C++ - OpenCV
Jan 20, 2025 · Hello friends. The following program WORKED to read image files, but it stopped working and gave the following error: global loadsave.cpp:268 cv::findDecoder imread_ (''): can't open/read …
Error: OpenCV(4.11.0) error: (-5:Bad argument) in function 'imshow'
Apr 4, 2025 · I think there was an update to the input sent to opencv in version 4.11 and it especially affects Linux-based systems. The question is, how should we adjust the array inputs created with …
Missing opencv dlls - OpenCV
Nov 15, 2024 · OpenCV has, or is in the process of gaining, a kind of runtime dispatch for some of its backends (highgui, videoio). What you’re seeing is its thought process. It will look for stuff that might …
Corners identification with OpenCV.js - javascript - OpenCV
Apr 7, 2025 · the opencv.js project was a GSoC project, a kind of feasibility study. there is hardly any code using it for LLMs to learn from. approxPolyDP was never useful for things with rounded corners. …
Build OpenCV with Cuda - C++ - OpenCV
Mar 7, 2025 · I am building an OpenCV library by Cmake with Cuda. My GPU and Cuda Toolkit are GTX1650 and v12.8, respectively. The command is following: cmake -G "Visual Studio 17 2022" …
Attribute Error: module 'cv2' has no attribute 'face' - OpenCV Q&A …
Oct 8, 2017 · The problem seems to be that python does not know to look for "face" attribute in the opencv_contrib-3.3.0 folder for some reason. Any suggestions would be very appreciated! Thanks in …
Python - OpenCV
Dec 3, 2020 · The Python Category is for discussion of Python coding issues, optimizations, or questions associated with OpenCV. Please keep discussion limited to OpenCV related topics. …