Undefined references when building OpenCV 4.0.0 sources
I get several undefined references when building OpenCV from sources, with the latest 4.0.0 version: \src\main\cpp\opencv\core\src/arithm.cpp:378: undefined reference to `cv::hal::and8u(unsigned char...
View ArticleBuild_sdk.py "is not able to compile a simple test program"
Hello everyone, I've encoutered an error when I want to build with build_sdk.py script : The outpout of the script : Package configuration:...
View ArticleOpenCV 4.0 co-exist with OpenCV 3.x?
OpenCV 4.0 would solve some problems on my current project, but 3.x was such a huge hassle to buid (Linux/C++) that I am hesitant to disrupt current installations. Has anyone built and run 4.0 along...
View ArticleRequest to FIX OpenCv 2.4.13.6 cmake source
Request to FIX OpenCv 2.4.13.6 cmake source to build OpenCv_World24136.DLL minimum build x86 vc12, because I can only build opencv_world with 3.x in vc14,vc15
View Articleabout the error in 'debayer.cu'
Hi, I'm Kundo. I'm trying to build OpenCV using the source I downloaded hear 'https://github.com/opencv/opencv' and 'https://github.com/opencv/opencv_contrib' here with Cmake. I'm using Windows 10...
View ArticleWill building an older opencv version from source without python modules...
I would like to build OpenCV from source for python as I require extra codecs. However, one of the c applications I use requires an older version of OpenCV but I would like to keep the newer python...
View ArticleFreetype2 and Harfbuzz on WINDOWS for Python
Hey guys, Im using Python 3.5 Im using the latest version of CMake, MinGW, etc... Im trying to compile OpenCV with Freetype2. I git-cloned both the OpenCV and OpenCV-Contrib from source Lets say I...
View ArticleThe docs it says I should include opencv2/core.hpp but it is not there
Hello! How are you? I am able to build the samples, but I am reading the docs how to start to use the library, but it says I shold include `opencv2/core.hpp`, but when I look into the...
View Articlebuild INSTALL does not add package WINDOWS
Hey there, I want to build OpenCV from source on Windows and use the python bindings. My machine runs Windows 10, 64bit and have Anaconda installed with Python 3.6.4. I followed the official manual...
View ArticleTrouble installing opencv 4.0.0 under linux
Hi, As far as I understand it, to install opencv 4.0.0 on a mint 18 linux, i need to build it from sources. So I tried (and failed). The Website...
View ArticleBuild opencv with opencv_contrib and latest protobuf (3.6.1)
Hi. I'm trying to build opencv from sources (https://github.com/opencv/opencv > master) with opencv_contrib which I locally cloned. I've prior installed protobuf 3.6.1...
View Articleunable to build opencv4
System information (version) OpenCV => :4.0 Operating System / Platform => : linux mint (ubuntu 16.04) 64 bit Compiler => :gcc Detailed description when i have run the command make -j4 . I...
View Articlefatal error: 'opencv2/videoio.hpp' file not found
I was trying to run files in samples/cpp but i was getting an error "fatal error: 'opencv2/videoio.hpp' file not found" So, I tried to search on the internet and find a solution I tried this method...
View Articlex86_64-unknown-linux-gnu/bin/ld: cannot find -lpthreads
I'm installing opencv 3.3 with centOS 6.9, gcc 4.8.5, cmake 3.11.1 ,cuda 9.0 and cudnn 7.0. I have been stuck on this question for quite a while. cmake error output as below....
View ArticleK.lib not found
Hi, I've been trying to compile OpenCV with several of the available build options (CUDA, TBB, IPP, MKL, Tesseract) on a Windows 10 computer with Visual Studio 2017. If I try to build opencv-core...
View Articleerror in builing from source for android
i have encountered an error while building opencv 4.0.1 from source to use it in android studio. After making source files using CMake and i get this error while using MinGw [ 0%] Building C object...
View Articlei keep trying to build opencv, but it keeps bringing build errors
i followed all the procedure in the tutorials, but it keeps bringing include error, linking error, infact everything errror... am using visual studio 2017 on window 8 hp 650 laptop,,, and also i try...
View ArticleWhere are include files for opencv4 after building the project file with...
Hi. I'm tryong to use opencv4 with contrib modules. Building made succesfully with some few warnings. But headers for build directory are missing such as highgui.hpp, core.hpp and so on... HERE IS MY...
View ArticleBuild opencv windows for android
Hello ! I come to you since I have building problems to put opencv and opencv-contrib in my android project ( i'am on windows 10). I followed the following tutorial and I have errors at the cmake...
View ArticleOpencv4.0.1 build only x86
Hi all! I'm trying to build opencv4.0.1 for windows 10 x64. When I start CMake, I only configure for EXTRA_MODULE_PATH, and then I configure then Generate. When I open the sln builded file, I only have...
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