linux打开笔记本摄像头驱动程序,Linux下使用Opencv打开笔记本摄像头

新建test文件夹，文件夹存在test.cpp和CMakeLists.txt

test.cpp

#include

#include

#include

#include

#include

#include

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 ;

}

String videoFile = parser.get();

if (!parser.check())

{

parser.printErrors();

return ;

}

VideoCapture cap;

if (videoFile != "")

{

cap.open(videoFile);// read a video file

}else {

cap.open();// read the default caera

}

if (!cap.isOpened())// check if we succeeded

{

return -;

}

namedWindow("Video", );

while ()

{

Mat frame;

cap >> frame; // get a new frame from camera

imshow("Video", frame);

if (waitKey() >= ) break;

}

// Release the camera or video file

cap.release();

return ;

}

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 estimation

option(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 support

if(CMAKE_COMPILER_IS_GNUCC)

ADD_DEFINITIONS ( -std=c++11 )

endif(CMAKE_COMPILER_IS_GNUCC)

# add OpenCV

set(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