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  1. I wonder if opencv has been installed - build - OpenCV

    Jul 16, 2025 · 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 …

  2. fatal error C1083: Cannot open include file ... - OpenCV Q&A Forum

    OpenCV 2.4.8 OPENCV_DIR Enviromnetal Variable set to C:\OpenCV\Build\x64\vc10\ with the command setx -m OPENCV_DIR C:\OpenCV\Build\x64\vc10 I followed everything exactly like …

  3. OpenCV does not recognize USB cameras by indices

    Oct 31, 2024 · Hello, I’m trying to run an USB 3.0 camera (AlliedVision Mako U 051-B) with OpenCV, but I only can run the integrated webcam in my notebook with cv2.VideoCapture (0). …

  4. CUDA Decoder issues - Python - OpenCV

    Mar 14, 2025 · I am trying to build OpenCV with CUDA support, it worked but now I wanted to add cudacodec as well, however I am having issues with installing the NVIDIA Video Codec SDK …

  5. Make: fatal error: too many errors emitted, stopping now - Python

    Mar 15, 2025 · I am having a really hard time compiling opencv. I’ve been at this for hours. cmake seems to complete fine, but make fails with many errors. If anybody could help me figure out …

  6. Failure to import cv2 in python - OpenCV Q&A Forum

    Aug 27, 2015 · Two weeks ago, I built openCV-3.0.0, using Visual Studio 2013 x64 on Windows 7, with Python 3.4.3. I've copied cv2.pyd into the Python34\Lib\site-packages folder.

  7. Failed to open camera when using CAP_MSMF - C++ - OpenCV

    Jan 22, 2022 · Hi, I downloaded the official OpenCV 4.5.5 release for windows from Releases - OpenCV. I wirte a very simple demo to open a usb camera, when using CAP_ANY or …

  8. Why need to set the path for opencv_world4100d.dll

    Sep 11, 2024 · opencv_world4100d.dll not found I download pre-compiled opencv. And using the opencv in my project on windows It always show “opencv_world4100d.dll not found” Until I set …

  9. 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! …

  10. Opencv build did not generate opencv_world dll and only …

    Feb 8, 2024 · Module opencv_alphamat disabled because the following dependencies are not found: Eigen freetype2: NO harfbuzz: NO -Julia not found. Not compiling Julia Bindings. …