[人工智能]Ubuntu OpenCV 读取图片并显示

c++ 代码:

#include "opencv2/opencv.hpp"

using namespace cv;

int main()
{
   Mat src;
   src = imread("../1.jpg");
   imshow("img_text",src);
   waitKey(6000);
   return 0;
}

CMakeLists.txt:

cmake_minimum_required(VERSION 2.8)
project( test1 )

set(OpenCV_DIR  ~/app/opencv-4.3.0/build) 
find_package(OpenCV REQUIRED)

message(status ${OpenCV_INCLUCE_DIRS})
message(status ${OpenCV_LIBS})

include_directories(${OpenCV_INCLUCE_DIRS})

add_executable( test1 main.cpp )
target_link_libraries( test1 ${OpenCV_LIBS} ) 

执行命令编译:

make build & cd build
cmake .. && make

运行:

./test