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C++ code to read images from webcam using CV 4.1.1
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| #include <opencv2/opencv.hpp> | |
| #include <iostream> | |
| int main(int, char**) { | |
| // open the first webcam plugged in the computer | |
| cv::VideoCapture camera(0); // in linux check $ ls /dev/video0 | |
| if (!camera.isOpened()) { | |
| std::cerr << "ERROR: Could not open camera" << std::endl; | |
| return 1; | |
| } | |
| // create a window to display the images from the webcam | |
| cv::namedWindow("Webcam", cv::WINDOW_AUTOSIZE); | |
| // array to hold image | |
| cv::Mat frame; | |
| // display the frame until you press a key | |
| while (1) { | |
| // capture the next frame from the webcam | |
| camera >> frame; | |
| // show the image on the window | |
| cv::imshow("Webcam", frame); | |
| // wait (10ms) for esc key to be pressed to stop | |
| if (cv::waitKey(10) == 27) | |
| break; | |
| } | |
| return 0; | |
| } | |
| // CMD to generate executable: | |
| // g++ webcam_opencv.cpp -o webcam_demo -I/usr/include/opencv4 -lopencv_core -lopencv_videoio -lopencv_highgui | |
| // Note: check your opencv hpp files - for many users it is at /usr/local/include/opencv4 | |
| // Add more packages during compilation from the list obtained by $ pkg-config --cflags --libs opencv4 |
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Yeah it's fine