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opencv.org
https://forum.opencv.org/
OpenCV - Ask OpenCV Questions, Get OpenCV Answers
OpenCV (Open Source Computer Vision Library) is an open source computer vision and machine learning (AI) software library.
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opencv.org
https://forum.opencv.org/t/cant-open-read-file-che…
Can't open/read file: check file path/integrity - C++ - OpenCV
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 file: check file path/integrity …
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opencv.org
https://forum.opencv.org/t/opencv-5-roadmap/22220
OpenCV 5 Roadmap? - opencv-50 - OpenCV
OpenCV 5 is many years late. Here is a quote from one of their old announcements: “In 2020, OpenCV 5.0 is coming out with an emphasis on deep learning and better performance on lower-power computing platforms. The other OpenCV 5.0 highlights are: Julia and Swift bindings, new 3D vision algorithms with elements of SLAM” scien June 18, 2025 ...
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opencv.org
https://forum.opencv.org/t/error-opencv-4-11-0-err…
Error: OpenCV(4.11.0) error: (-5:Bad argument) in function 'imshow'
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 numpy in Linux-based systems in the current version?
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opencv.org
https://forum.opencv.org/t/opencv-rtsp-stream-time…
Opencv Rtsp Stream timeout - Python - OpenCV
I have an RTSP URL for streaming from a CCTV camera, but I get the following error: [ WARN:[email protected]] global cap_ffmpeg_impl.hpp:453 _opencv_ffmpeg_interrupt_callback Stream timeout triggered after 30046.359055 ms When I test the same URL in VLC by opening the network stream, the live feed works perfectly. What could be causing this issue, and how can I fix it?
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opencv.org
https://forum.opencv.org/t/how-to-use-thin-plate-s…
How to use Thin Plate Spline Shape Transformer correctly?
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 might have to fit a transformer for the opposite transform, i.e. swap source and destination points.
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opencv.org
https://answers.opencv.org/question/232907/downloa…
Download haarcascade_frontalface_default.xml - OpenCV Q&A Forum
How do I do this from github? I'm using Windows/Pycharm
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opencv.org
https://forum.opencv.org/t/dll-load-failed-while-i…
DLL load failed while importing cv2 - Python - OpenCV
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 scratch then don’t pip install (pip uninstall any existing OpenCV installation first ) and read ImportError: DLL load failed while importing cv2: The specified module could not be found to see if it helps.
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opencv.org
https://forum.opencv.org/t/opencv-cuda-c/19868
Opencv + CUDA + C++ - C++ - OpenCV
I had difficulties building from the opencv + CUDA source code for c++. I do everything according to this guide. Build OpenCV (including Python) with CUDA on Windows: Comprehensive Guide including Python Bindings, cuDNN…
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opencv.org
https://forum.opencv.org/t/missing-opencv-dlls/192…
Missing opencv dlls - OpenCV
OpenCV is attempting to load GTK-based libraries for its GUI (opencv_highgui_gtk4100_64.dll, opencv_highgui_gtk34100_64.dll, etc.), but it is failing to do so. There are also failed attempts to load parallel processing libraries (like opencv_core_parallel_onetbb4100_64d.dll, opencv_core_parallel_tbb4100_64d.dll, and opencv_core_parallel_openmp4100_64d.dll) Are these issue is impacting the ...