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Brew install opencv 3.4.0 Pc#
Brew install opencv 3.4.0 windows#

Src\main.o: In function cv::Mat::release()':Ĭ:/opencv_src/Mingw_build/install/include/opencv2/core/:804: undefined reference to cv::Mat::deallocate()’Ĭollect2.exe: error: ld returned 1 exit status Src\main.o: In function cv::Mat::~Mat()':Ĭ:/opencv_src/Mingw_build/install/include/opencv2/core/:692: undefined reference to cv::fastFree(void*)’ Src\main.o: In function cv::String::~String()':Ĭ:/opencv_src/Mingw_build/install/include/opencv2/core/cvstd.hpp:648: undefined reference to cv::String::deallocate()’ G++ “-LC:\\opencv_src\\Mingw_build\\install\\圆4\\mingw\\lib” -o 圆4_super_vision_cam_v1.exe “src\\main.o”Ĭ:\Users\Technologist\Marble\64bit\64bit_HID_camdev\圆4_super_vision_cam_v1\Debug/./src/main.cpp:21: undefined reference to cv::imread(cv::String const&, int)’Ĭ:\Users\Technologist\Marble\64bit\64bit_HID_camdev\圆4_super_vision_cam_v1\Debug/./src/main.cpp:28: undefined reference to cv::imshow(cv::String const&, cv::_InputArray const&)'Ĭ:\Users\Technologist\Marble\64bit\64bit_HID_camdev\圆4_super_vision_cam_v1\Debug/./src/main.cpp:29: undefined reference to cv::waitKey(int)’ src\main.o: In function cv::String::String(char const*)':Ĭ:/opencv_src/Mingw_build/install/include/opencv2/core/cvstd.hpp:602: undefined reference to cv::String::allocate(unsigned long long)’

image = imread ( "C://YOURIMAGEPATH.jpg", CV_LOAD_IMAGE_COLOR ) Ġ4/11/17 – Changed the order of some steps Ģ2/11/17 – Added MinGW-w64 instead of the conventional MinGW ġ2/04/18 – Added a better explanation for running the test codeġ2/09/18 – Added version 3.4.3 links and error correction sentences.

image = imread ( argv, CV_LOAD_IMAGE_COLOR ).

Or put the path of the image you want to show in the code, changing the following line:.

Open the Powershell or CMD, go to the executable folder and type:.

There are a lot of o ways of running it, e.g.:

You can add additional libraries from lib folder if you need, just follow the presented format Ĭ : \ opencv_src \ Mingw_build \ install \ 圆4 \ mingw \ lib.

If you are using a different OpenCV version, change the number at end of each lib to match your version.

Opencv_calib3d330 opencv_core330 opencv_features2d330 opencv_flann330 opencv_highgui330 opencv_imgcodecs330 opencv_imgproc330 opencv_ml330 opencv_objdetect330 opencv_photo330 opencv_shape330

Open it and create a C++ program using the following OpenCV example:.

I have seen errors related also to the following parameters: WITH_PTHREADS_PF, WITH_OPENCL and ENABLE_CXX11 options.

Finally, add C : \ opencv_src \ Mingw_build \ install \ 圆4 \ mingw \ binto your system path.

Inside opencv_src/ Mingw_build type mingw32- make and hit enter - This step probably will take a while, wait until it’s finished.

Now, open the CMD/PowerShell, and navigate to opencv_src/ Mingw_build/.

Brew install opencv 3.4.0 Pc#

After the “Configure”, on my PC I had to deselect the options ENABLE_PRECOMPILED_HEADERS and BUILD_opencv_python3 to correctly compile.After the “Configure” is finished, Set OPENCV_EXTRA_MODULES_PATH to opencv_contrib/modules folder.For additional info, access its Modules Github Page.If you want a simple and flawlessly working installation, just skip this step and go to the next, it’s not obligatory for you to have opencv_contrib.Optional Step: OpenCV_Contrib Extra modules Click on Configure, choosing Eclipse CDT4 – MinGW MakeFilein the next window, then next.Set “Where is the source code:” to opencv_srcand “Where to build the binaries” to opencv_src/ Mingw_build/.Extract OpenCV to a folder, rename it opencv_src- Inside it, create a folder named Mingw_build.– Then, hit New, and add the address of your MinGW bin folder. – Edit your System Environment variables (you can search for Environment in Windows’ Start Menu)

(Optional) If you want the extra modules, you will need opencv_contrib (Version 3.4.3 can be found here).OpenCV source code: version 3.4 or 3.3 ( Link to Github repository (Latest release: 3.4.3)).

Brew install opencv 3.4.0 windows#

(This is an updated version of the article I wrote months ago: Installing and using OpenCV 3.2 with Eclipse and MinGW on Windows 10. A new version of OpenCV has been released so… Time to update!