【OpenCV笔记一】Mac安装OpenCV环境及demo

1.安装cmake# brew install cmake2.安装OpenCV# brew tap homebrew/science# brew install opencv3.配置OpenCV环境: vi /etc/profile添加#OpencvPKG_CONFIG_PATH=$PKG_CONFIG_PATH:/usr/local/Cellar/opencv/3.3.1_1/lib/pkgconfigexport PKG_CONFIG_PATHexport LD_LIBRARY_PATH=/usr/local/Cellar/opencv/3.3.1_1/bin:SLD_LIBRARY_PATHexport PATH=${PATH}:/usr/local/Cellar/opencv/3.3.1_1/lib执行:source /etc/profile4.测试demo<1>.test.cpp   #include <opencv2/highgui.hpp>#include <opencv2/opencv.hpp>using namespace cv;int main(int argc, char** argv){     //加载图片路径  Mat img = imread("moon.jpeg", CV_LOAD_IMAGE_UNCHANGED);  if(img.empty())  {    fprintf(stderr, "请输入正确的图片路径\n");    return -1;  }  Mat gray;  cvtColor(img,gray,CV_BGR2GRAY);    //jpeg格式转换为png格式图片  if( ! imwrite("image_copy.png", img) )  {    fprintf(stderr, "转换写入图片失败.\n");  }  imshow("显示图片", img);  waitKey(0);  return 0;}<2>.Makefile 注意：第2行和第4行开头是 Tab键，不是空格键。test:test.cppg++ -o test test.cpp `pkg-config --libs opencv` `pkg-config --cflags opencv` clean:rm test