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ubuntu18.04环境用opencv测摄像头

news 2026/5/12 10:27:55

ubuntu18.04

参考

sdl安装测试-mingw32环境

mingW32环境用opencv测摄像头

下载源码

opencv-3.4.12.zip

wpf@minglie:/opt/soft$lsopencv-3.4.12.zip wpf@minglie:/opt/soft$unzipopencv-3.4.12.zip wpf@minglie:/opt/soft$lsopencv-3.4.12.zip opencv-3.4.12

安装依赖

sudoaptupdatesudoaptinstall-ybuild-essential cmakegitpkg-configsudoaptinstall-ylibjpeg-dev libpng-dev libtiff-devsudoaptinstall-ylibavcodec-dev libavformat-dev libswscale-devsudoaptinstall-ylibv4l-devsudoaptinstall-ylibxvidcore-dev libx264-devsudoaptinstall-ylibgtk2.0-devsudoaptinstall-ylibatlas-base-dev gfortransudoaptinstall-ypython3-dev python3-numpy

编译

wpf@minglie:/opt/soft$mkdir/opt/soft/opencv-3.4.12/build wpf@minglie:/opt/soft/opencv-3.4.12/build$# 构建/home/minglie/soft/clion-2023.3.4/bin/cmake/linux/x64/bin/cmake-DCMAKE_BUILD_TYPE=RELEASE-DCMAKE_INSTALL_PREFIX=/home/minglie/petalinux/extlib/mingopencv-DWITH_GTK=ON-DBUILD_opencv_highgui=ON..# 编译make-j$(nproc)# 安装sudomakeinstall# 查看wpf@minglie:/opt/soft/opencv-3.4.12/build$ls/home/minglie/petalinux/extlib/mingopencv bin include lib share

摄像头权限查看配置

wpf@minglie:~$ lsusb Bus 002 Device 002: ID8087:8000 Intel Corp. Bus 002 Device 001: ID 1d6b:0002 Linux Foundation2.0root hub Bus 001 Device 002: ID8087:8008 Intel Corp. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation2.0root hub Bus 004 Device 001: ID 1d6b:0003 Linux Foundation3.0root hub Bus 003 Device 001: ID 1d6b:0002 Linux Foundation2.0root hub wpf@minglie:~$ lsusb Bus 002 Device 002: ID8087:8000 Intel Corp. Bus 002 Device 001: ID 1d6b:0002 Linux Foundation2.0root hub Bus 001 Device 002: ID8087:8008 Intel Corp. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation2.0root hub Bus 004 Device 001: ID 1d6b:0003 Linux Foundation3.0root hub Bus 003 Device 007: ID 1bcf:2281 Sunplus Innovation Technology Inc. Bus 003 Device 001: ID 1d6b:0002 Linux Foundation2.0root hub wpf@minglie:~$ls/dev/video* /dev/video0 /dev/video1 wpf@minglie:~$ls-la/dev/video0 /dev/video1 crw-rw----+1root video81,03月1212:09 /dev/video0 crw-rw----+1root video81,13月1212:09 /dev/video1 wpf@minglie:~$sudousermod-aGvideo wpf[sudo]wpf 的密码： wpf@minglie:~$sudochmod666/dev/video0

测试

CMakeLists.txt

cmake_minimum_required(VERSION3.5)project(test_camera)set(OpenCV_DIR /home/minglie/petalinux/extlib/mingopencv/share/OpenCV)find_package(OpenCV REQUIRED)include_directories(${OpenCV_INCLUDE_DIRS})add_executable(test_camera src/main.cpp)target_link_libraries(test_camera${OpenCV_LIBS})

main.cpp

#include<opencv2/opencv.hpp>#include<iostream>intmain(){cv::VideoCapturecap(0);if(!cap.isOpened()){std::cout<<"摄像头打不开!"<<std::endl;return-1;}std::cout<<"摄像头打开成功!"<<std::endl;cv::Mat frame;while(true){cap>>frame;if(frame.empty())break;cv::imshow("Camera",frame);if(cv::waitKey(1)==27)break;// ESC退出}cap.release();cv::destroyAllWindows();return0;}