Error building opencv with extra modules in Visual Studio
I have configured and generated opencv 3.2 with extra modules on CMAKE successfully using a 32-bit compiler of Visual Studio 2015 (vs14). However, when building this project in Visual Studio I get...
View ArticleBuild failure with android ndk r13b and c++_shared
Because of other dependencies we need to build openCV with ndk r13b and the stl c++_shared. We build on mac OSX. First we had to fix a small thing in *android.toolchain.cmake* since apparently some...
View ArticleIssue with build on symbols OpenCV 3.2.0 / VS2015 / Release (x64)
Hey all I've been hitting a problem for a couple of days now of getting OpenCV to run within a project with VS2015 but am having library linking problems. Specifically, I'm the maintainer of the...
View Articleopengl_interop.o build error
I recently started to use OpenCV on Qt Creator 4.2.1. Now I am trying to run opengl_interop.cpp from samples/opengl but I am getting this error: **opengl_interop.o: undefined reference to symbol...
View ArticleLinking error when building OpenCV 3.2.0 with Python support
I build OpenCV 3.2.0 from the sources (including the contrib modules) using the `3.2.0` branch. And when I import it within python, through `import cv2`, I get an `undefined symbol` error. That in my...
View ArticleMissing ts from Release build
I'm testing the unit test framework of OpenCV, as instructed in here: quentin.bonnard.eu/blog/2013/10/16/Using-OpenCV_s_test_framework_with_CMake/. However, when I want to test the examples the `ts`...
View Articlebuild openCV-3.1.0 with GStreamer windows
Hi, I am trying to build openCV-3.1.0 with GStreamer enabled using cmake-gui. I have installed these two GStreamer packages (gstreamer-1.0-devel-x86_64-1.11.2.msi and gstreamer-1.0-x86_64-1.11.2.msi)...
View ArticleBuilding OpenCV 3.2 with opencv_contrib for Python 3.6 on Window
Hello All, I am attempting to build 3.2 for Python 3.6, on windows 10. I have not seen a specifically OpenCV 3.2 for Python 3.6 tutorial but I have been using these as reference. Tutorial 1...
View ArticleSSE2 - Not Available
Hello, Today I install OpenCV. And I want to test it with the following code: #include #include using namespace cv; int main(int argc, char** argv ) { if ( argc != 2 ) { printf("usage: DisplayImage.out...
View ArticleHow to check which GaussianBlur version is used in OpenCV?
I built OpenCV using IPP, but I want to be sure that `cv::GuassianBlur` is executed by using that version and not other implementations. I'm having this doubt because I've built OpenCV with OpenCL...
View Articlebuild error at window_gtk.cpp
With gcc-4.4.7, cmake-3.2.3, opencv-3.2.0 and gtk-2.18.9-10.el6 I get this error while making: [ 30%] Building CXX object modules/highgui/CMakeFiles/opencv_highgui.dir/src/window_gtk.cpp.o...
View ArticleAre there current step by step instructions on how to build opencv source...
I have: Cmake gui 3.8.1 VS pro 2017 15.1 Opencv 3.2 Opencv contrib module Windows 10 Pro 64bit Are there any step by step instructions for building opencv source with contributing modules?
View ArticleBuild error Open CV3.2 with Extra Libs.
Hi all, I have a problem to build OpenCV with Extra Libs. OS: Win 7 OpenCV: 3.2 Compile: VS2013 After set path of extra modules in OPENCV_EXTRA_MODULES_PATH, click "configure" The error messages are...
View ArticleContrib module in Android Release
On http://docs.opencv.org/3.1.0/d5/df8/tutorial_dev_with_OCV_on_Android.html it states> According to this approach all OpenCV binaries are included into your application package. It is designed...
View ArticleProblem compiling OpenCV 2.4.13 with Cmake and MinGW
I got this problem when trying to compile opencv using Cmake and mingw. for Cmake: sourcecode is located in "C:\CPP Libraries\OpenCV-2.4.13\opencv\sources" where the binaries are goint to be build is...
View ArticleBuild Opencv320 for android with NEON works but app crashes at start
I could successfully build OpenCV320 for android under Windows10 using cmake, targeting armeabi-v7a and arm64-v8a abis Now I am trying to build it with "armeabi-v7a with NEON" to check performance...
View Article[Solved] cmake/make build of opencv320 for android in Windows 10
( I don't know if it is the right place to post it, so please point me in the right direction if not so.) Has anyone succeeded to build openCV for android in Windows 10 with cmake/make in a clean...
View ArticleHow to build opencv.framework for iOS within XCode
I wish to link my project against a local debug build of opencv.framework so that I can single-step through the internals. I follow the instructions on...
View ArticleInstalling opencv in docker container
Hi, I'm trying to install opencv for [this](https://github.com/ageitgey/face_recognition) project. In the original dockerfile, they didn't give instructions for installing opencv. The dockerfile...
View ArticleWindows 64 bit builds
Hi, I am having some trouble with the v. 3.2.0 prebuilt distribution for windows. I have downloaded from the link:...
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