CMakeList.txt设置OpenCv路径

源文件imageBasics.cpp

#include 
#include 
using namespace std;

#include 
#include 

int main ( int argc, char** argv )
{
    // 读取argv[1]指定的图像
    cv::Mat image;
    image = cv::imread ( argv[1] ); //cv::imread函数读取指定路径下的图像
    // 判断图像文件是否正确读取
    if ( image.data == nullptr ) //数据不存在,可能是文件不存在
    {
        cerr<<"文件"< ( y );  // row_ptr是第y行的头指针
        for ( size_t x=0; x time_used = chrono::duration_cast>( t2-t1 );
    cout<<"遍历图像用时："<

 CMakeList.txt

cmake_minimum_required( VERSION 2.8 )
project( imageBasics )

# 添加c++ 11标准支持
set( CMAKE_CXX_FLAGS "-std=c++11" )

# 寻找OpenCV库
set(OpenCV_DIR /home/chaofan/opt/opencv-3.4.4/release)
find_package( OpenCV 3 REQUIRED )
# 添加头文件
include_directories( ${OpenCV_INCLUDE_DIRS} )

add_executable( imageBasics imageBasics.cpp )
# 链接OpenCV库
target_link_libraries( imageBasics ${OpenCV_LIBS} )


 怎么找到opencv的路径？
就是去找安装opencv的时候建立的release或build文件夹，主要依据是里面有OpenCVConfig.cmake文件