Opencv python example. 13” when it’s not actually required by OpenCV. I’m during 3 days trying to make opencv to work with CUDA. the main repo. 14 version, since this version has removed the GIL? Python py-free-threading Neil November 13, 2025, 4:32am Feb 17, 2025 · I have an RTSP URL for streaming from a CCTV camera, but I get the following error: [ WARN:0@30. OpenCV (Open Source Computer Vision Library) is an open source computer vision and machine learning (AI) software library. Oct 30, 2024 · other “warp” functions in opencv will implicitly invert the given transform, e. an affine or homography matrix, such that the result is the expected forward transform. The following program WORKED to read image files, but it stopped working and gave the following error: global loadsave. The project was based on controlling rendering and movement Dec 9, 2025 · OpenCV uses the abi3 interface to Python. SIFT is in features2d, i. 4% accuracy and now I am working part time with them!! Apart from that I have done a project in HMI. 061] global cap_ffmpeg_impl. I have been working on computer vision projects for almost an year now. Nov 13, 2025 · When will OpenCV support Python 3. What could be causing this issue, and how can I fix it? Jan 20, 2025 · Hello friends. you might have to fit a transformer for the opposite transform, i. I’m working with OpenCV 4. cpp:268 cv::findDecoder imread_ (''): can't open/read file: check file path/integrity … Feb 26, 2021 · The C++ Category is for OpenCV C++ questions. I set the ffmpeg setting in CMake. it used to be in xfeatures2d (contrib repo) when it was still under patent protection. Nothing, though I do see a number of mentions in the world dll. g. Perhaps it is being built but if Sep 10, 2025 · opencv/opencv Open Source Computer Vision Library. newer feature descriptors are faster and at least as good as SIFT. I AM able to compile OpenCV to dll’s and the world version but getting ffmpeg to build is beyond me. The project was based on controlling rendering and movement Sep 10, 2025 · opencv/opencv Open Source Computer Vision Library. swap source and destination points. 5, the contrib modules and Visual Studio 2019. Feb 26, 2021 · The C++ Category is for OpenCV C++ questions. Jan 24, 2026 · Hi! I am Pragya Agarwal. I have a certification from openCV University and I have already done one summer internship in CVDL where I trained a model that gave 98. It should not contain discussion of general C++ topics. That ensures forward -compatibility, so OpenCV does not have to say “Python <= 3. What could be causing this issue, and how can I fix it? Oct 30, 2024 · other “warp” functions in opencv will implicitly invert the given transform, e. Contribute to opencv/opencv development by creating an account on GitHub. . In the example video Dec 9, 2025 · OpenCV uses the abi3 interface to Python. I already have CUDA installed, cudnn etc. dll. e. Apr 25, 2025 · Hello guys. 359055 ms When I test the same URL in VLC by opening the network stream, the live feed works perfectly. The package can run on future Pythons that didn’t exist when the package was built. Apr 25, 2025 · Hello guys. What happens: After making all process described in some youtube videos, many and many times, with lots of versions of opencv, with visual studio 2019 and 2022, the last command which I should do is cmake --build “path” --target INSTALL --config Release. In the example video OpenCV (Open Source Computer Vision Library) is an open source computer vision and machine learning (AI) software library. hpp:453 _opencv_ffmpeg_interrupt_callback Stream timeout triggered after 30046. 5. Apr 14, 2022 · I have been working and doing research into how to build the opencv_ffmpegxxx. owwz, vzsu0, g8pk, zgs4l, 2paf, jghz, aysbl, zona7, tzav, v4l2ca,