I have installed OpenCV for Python applications in Windows. I am able to...
I have installed OpenCV for Python applications in Windows. I am able to access OpenCV only from Administrator login. But not from USERS login. Request your help to access OpenCV from users login. I...
View ArticleBuilding OpenCV w/ Python 3 + Qt5 Support - DLL problems
Hi all. Been struggling with this all day. I'm working on compiling OpenCV 3.4.1 with Python 3.6.4 (32-bit) and Qt 5.10.1 support using MinGW 5.3.0 (32-bit) on Windows 10 64-bit. I'm compiling from...
View ArticleCmake cross platform Execution Problems?
I've downloaded the opencv code from the github and executed the code using VisualStudio2012. There was no problem. I tested with some sample program execution, it works fine. With the same OpenCv...
View ArticleCan't install OpenCV + Python in Windows
I've followed the documentation here: https://docs.opencv.org/3.4.1/d5/de5/tutorial_py_setup_in_windows.html The documentation lists two methods, but I can't get either of them to work. The first...
View ArticlePerformance of camera image capture and save Windows
There is a webcam connected to the minicomputer and there is 64bit windows 7 installed. In visual studio 2003, I implemented webcam view and save with win32 program using opencv, but performance is...
View ArticleHow do I get the camera ID number and path?
**Edited after comments.** **Followup to this [question](http://answers.opencv.org/question/190710/how-do-i-choose-which-camera-i-am-accessing/)** > Windows 7 >> OpenCV 3.4.1 >> Eclipse...
View ArticleOpen video minimized.
I have two monitors. One runs a full screen application the second is where the opencv video window opens. The problem I have is every time a new video plays on the second screen it forces my full...
View ArticleFaceRecognizer
hello ... before show my issue this is my system information OpenCV => 3.4.1 Operating System / Platform => Windows 10 64 Bit Compiler => java netbeans 8.2...
View ArticleCompile error when compiling for windows (3.4.1-dev)
Hello I'm trying to compile opencv 3.4.1-dev for windows by using mingw32 but I get this error : [ 64%] Building CXX object modules/dnn/CMakeFiles/opencv_dnn.dir/src/layers/padding_layer.cpp.obj [ 64%]...
View ArticleOpenCV 3.4.1, first tutorial won't build
This is on Windows 10 x64, with Visual Studio 2017 and opencv 3.4.1. I installed opencv via [this guide from the docs](https://docs.opencv.org/3.4.1/d3/d52/tutorial_windows_install.html), changing the...
View ArticleC:\Users\m\AppData\Local\Temp\ccS5IfdC.s|20393|Error: invalid register for...
I am trying to use OpenCV 3.4.1 on Windows 10 with CodeBlocks. So I downloaded mingw64(`x86_64-8.1.0-release-posix-seh-rt_v6-rev0`), and used CMake to configure and generate `opencv.cbp` successfully....
View ArticleOpen USB webcam by name instead Id in Python Windows 10
Hi, I need to open specific camera, logitech c920, and I have more than one camera connected to my laptop. Sometimes the c920 takes Id 0 and sometimes Id 1, and I need automatically open the correct...
View ArticleVideo Capture Resolution Issue on Windows
Hi, I've been trying to just do a simple Video capture feed with open cv but i have a problem with the resolution of the feed. The video feed defaults into 640 x 480 resolution but I know the camera...
View Articleopencv build error in windows: no rule to make target
Hi everyone. I can't create opencv jar with extra modules. I run cmake-gui,then I run "make" command in build file, I take error which no rule to make target. Can you help me, why I can create jar ? I...
View ArticleComputer Vision Annotation Tool (CVAT) for Windows?
I just came across [CVAT](https://github.com/opencv/cvat). I was thinking of writing a similar tool myself, but CVAT seems to address most of my needs, but one - I would like to use it on Windows 10....
View ArticleCV2.rectangle expects integer on windows but works with float on Ubuntu
I was working on some code on ubuntu and tried to run it on windows. I get this error on Windows: `TypeError: integer argument expected, got float` >self.rect1 = [(self.width / 2) - 10, (self.height...
View ArticleChange camera size fails on windows, works on linux?
This codeworks on Linux, it Fails on windows10 OpenCV 3.4.2, 64bit -Python 3.6 - installed via "pip3 install opencv-python" It fails on Windows with the error message below. If I remove the 'cv2.set()'...
View ArticleCmake with TBB on win64 (unfamiliar cmake gui fields)
I tried to follow instructions here https://perso.uclouvain.be/allan.barrea/opencv/cmake_config.html to run cmake gui with tbb enabled. However, instead of the expected fields (after second configure)...
View ArticleUsing OpenCL causes application to hang at startup
Hi, When building an application on Windows using OpenCV, the application hangs on startup with the error: DXGI ERROR: CreateDXGIFactory cannot be called from DllMain. [ Miscellaneous Error #76 ] I...
View Articleerror compilation openCV
[ 0%] Built target gen-pkgconfig [ 2%] Built target zlib [ 6%] Built target libjpeg [ 9%] Built target libtiff [ 19%] Built target libwebp [ 22%] Built target libjasper [ 24%] Built target libpng [...
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