小编给大家分享一下Linux下如何使用Opencv打开笔记本摄像头问题，相信大部分人都还不怎么了解，因此分享这篇文章给大家参考一下，希望大家阅读完这篇文章后大有收获，下面让我们一起去了解一下吧！
新建test文件夹，文件夹存在test.cpp和CMakeLists.txttest.cpp#include <iostream>
#include <string>#include <sstream>#include <opencv2/core.hpp>#include <opencv2/highgui.hpp>#include <opencv2/videoio.hpp> using namespace cv;using namespace std;const char* keys = { "{help h usage ? | | print this message}" "{@video | | Video file, if not defined try to use webcamera}"};int main(int argc, const char** argv){ CommandLineParser parser(argc, argv, keys); parser.about("Reading a video and camera v1.0.0"); if (parser.has("help")) { parser.printMessage(); return 0; } String videoFile = parser.get<String>(0); if (!parser.check()) { parser.printErrors(); return 0; } VideoCapture cap; if (videoFile != "") { cap.open(videoFile);// read a video file }else { cap.open(0);// read the default caera } if (!cap.isOpened())// check if we succeeded { return -1; } namedWindow("Video", 1); while (1) { Mat frame; cap >> frame; // get a new frame from camera imshow("Video", frame); if (waitKey(30) >= 0) break; } // Release the camera or video file cap.release(); return 0;}CMakeLists.txt
project(test)cmake_minimum_required(VERSION 2.8.7)# option to enable OpenMP; only relevant for the KCF version with the# VOT scale estimationoption(WITH_OPENMP "Enable OpenMP" OFF)if(WITH_OPENMP) find_package(OpenMP REQUIRED) set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${OpenMP_CXX_FLAGS}") set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} ${OpenMP_EXE_LINKER_FLAGS}")endif(WITH_OPENMP)# add c++11 supportif(CMAKE_COMPILER_IS_GNUCC) ADD_DEFINITIONS ( -std=c++11 )endif(CMAKE_COMPILER_IS_GNUCC)# add OpenCVset(OPENCV_DIR_HINT "")if(WIN32) get_filename_component(OPENCV_DIR_PLATFORM $ENV{OPENCV_DIR} DIRECTORY) get_filename_component(OPENCV_DIR_HINT ${OPENCV_DIR_PLATFORM} DIRECTORY)endif(WIN32)set(OpenCV_STATIC OFF)find_package(OpenCV REQUIRED HINTS ${OPENCV_DIR_HINT})编译过程：
> cd test> g++ test.cpp -o test `pkg-config --cflags --libs opencv`> ./test
总结
以上所述是小编给大家介绍的Linux下利用Opencv打开笔记本摄像头问题，希望对大家有所帮助，如果大家有任何疑问请给我留言，小编会及时回复大家的。在此也非常感谢大家对编程网网站的支持！
以上是“Linux下如何使用Opencv打开笔记本摄像头问题”这篇文章的所有内容，感谢各位的阅读！相信大家都有了一定的了解，希望分享的内容对大家有所帮助，如果还想学习更多知识，欢迎关注编程网行业资讯频道！
