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 …

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 …

Since images are numpy arrays in OpenCV, we could use concatenate, vstack or hstack to help us achieve the task. The comments in the code should be self explanatory but one thing to be …

Oct 28, 2025 · OpenCV (Open Source Computer Vision Library) is an open source computer vision and machine learning (AI) software library.

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).

Oct 4, 2017 · I just started with OpenCV. I have a small video clip that I want to process frame by frame. That's why I want to be able to access the pixel RGB values via Numpy arrays. What is …

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 …

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 …

Under Ubuntu 15.04 I am trying to compile in QTCreator an application that uses OpenCV and CUDA to display Intel DepthSense 3D camera.

Jan 17, 2017 · Then Enter: OpenCV_DIR into the Variable Name, and the path to your OpenCV directory into followed by "opencv\build" into the Variable Value. For more details on step 2. …