
Error compiling project with CMAKE - OpenCV Q&A Forum
Hello, I want to compile my opencv project using cmake. Here is my CMakeLists.txt file cmake_minimum_required (VERSION 2.8) project ( opencv_test ) set (OpenCV_DIR …
Skipping frames in VideoCapture - OpenCV Q&A Forum
I'm doing some motion detection on a video and while doing the processing, it sometimes is handy to simply skip a couple of frames in order to have a bigger impact on the e.g. optical …
CMake option to prefer static libs - OpenCV Q&A Forum
Hello all, I am using OpenCV 3.4.3 on macOS 10.14 for one of my projects. While I have installed and compiled OpenCV myself, I'd like to build an executable with statically linked OpenCV libs …
Conversion focal distance from mm to pixels - OpenCV Q&A Forum
In opencv exists the function cv::CalibrationMatrixValues that convert from pixels to mm. I want to do the inverse conversion (based on the function's source code).
Correct HSV InRange Values for 'Red' Objects - OpenCV Q&A Forum
I am using OpenCV 2.4.6 to try to detect white objects in an image that is primarily green-grey. (See the following picture). I have converted this image into the HSV format and these white …
OpenCV - Ask OpenCV Questions, Get OpenCV Answers
Oct 28, 2025 · OpenCV (Open Source Computer Vision Library) is an open source computer vision and machine learning (AI) software library.
OpenCV with CUDA support – unsupported visual studio version …
Mar 26, 2025 · Good morning, I am currently experiencing an issue building OpenCV with Cuda support. Following the process of using cmake to configure and generate I am building in …
Use of CLAHE - OpenCV Q&A Forum
I am familiar with the CLAHE algorithm and have found it very useful. I am very pleased that it has been added to OpenCV. Is there any API documentation available other than the include files? …
Conversion from RGB to HSI - OpenCV Q&A Forum
May 22, 2015 · Hi to all! I need a color conversion from RGB (or BGR) color space into HSI color space. But openCV implements only RGBtoHSV or RGBtoHLS color conversion. Is there a …
unable to find opencv through pkg-config --cflags opencv
Feb 12, 2020 · but when i do pkg-config for opencv it still says Package opencv was not found in the pkg-config search path. Perhaps you should add the directory containing `opencv.pc' to …