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  1. 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" …

  2. Opencv + CUDA + C++ - C++ - OpenCV

    C++ cuda chit_Pit January 24, 2025, 7:32pm 1 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 …

  3. 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 …

  4. How to properly convert Mat to Bitmap C++ - OpenCV Q&A Forum

    Oct 2, 2017 · Hello, I'm a student and I'm learning OpenCV (C++) and I'm having a weird question. I'm using OpenCV in C++/CLI and a C# Windows Form to show the output. This is my plan on how to do …

  5. What is Point2f and Point3f? - OpenCV Q&A Forum

    OpenCV's definition doesn't use a union because it wanted the code to "look clean", to stay away from C programming style. However, newer C++ language specifications have clarified the semantic and …

  6. C++ - OpenCV

    Feb 26, 2021 · The C++ Category is for OpenCV C++ questions. It should not contain discussion of general C++ topics.

  7. Open CV C++ Unresolved External Symbol Mat - C++ - OpenCV

    May 11, 2023 · I fixed it by pasting the dll in the same folder where the exe of the C++ program is. The script detects the edges on the image and saves the output to disk with the function cv::imwrite.

  8. How to compile basic opencv program in C++ in ubuntu

    Using Eclipse See OpenCV Documentation about OpenCV with Eclipse (plugin CDT) Using CodeBlocks Open CodeBlocks and create new C++ project. Now right click on your project->Buid Options. On the …

  9. comparing two image - OpenCV Q&A Forum

    Oct 3, 2017 · If you are using c++, cv::subtract give you a Mat with tons of pixels value but not a single value which tell you how many non zero pixels in the matrix. You can call countNonZero in c++ to …

  10. How to correctly use cv::connectedComponentsWithStats ( - C

    Oct 18, 2023 · How to correctly use cv::connectedComponentsWithStats ( C++ imgproc F10w10 October 18, 2023, 10:01am 1