OpenCV - Ask OpenCV Questions, Get OpenCV Answers
2025年11月15日 · OpenCV (Open Source Computer Vision Library) is an open source computer vision and machine learning (AI) software library.
Can't open/read file: check file path/integrity - C++ - OpenCV
2025年1月20日 · 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 …
Download haarcascade_frontalface_default.xml - OpenCV Q&A …
2020年7月26日 · faq tags users badges This forum is disabled, please visit https://forum.opencv.org
Unable to compile CUDA Version - Python - OpenCV
2025年4月25日 · 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 …
Opencv Rtsp Stream timeout - Python - OpenCV
2025年2月17日 · I have an RTSP URL for streaming from a CCTV camera, but I get the following error: [ WARN:0@30.061] global cap_ffmpeg_impl.hpp:453 …
How to use Thin Plate Spline Shape Transformer correctly?
2024年10月30日 · other “warp” functions in opencv will implicitly invert the given transform, e.g. an affine or homography matrix, such that the result is the expected forward transform. you …
Error: OpenCV(4.11.0) error: (-5:Bad argument) in function 'imshow'
2025年4月4日 · 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 …
I wonder if opencv has been installed - build - OpenCV
2025年7月16日 · I tried to run opencv using Visual Studio on Windows 11. But it is missing many include files. I think I was missing some steps during the installation process. For instance if I …
Build OpenCV with Cuda - C++ - OpenCV
2025年3月7日 · 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 …
DLL load failed while importing cv2 - Python - OpenCV
2023年8月29日 · I may be wrong but it seems like you are mixing up two different installation methods. If you pip install you shouldn’t need to copy any dll’s accross. If you are building from …