OpenCV 在mac下的安装以及在Xcode中的配置

远行的心

　　1. app store下载xcode
　　2. OpenCV 官网下载OpenCV for linux/mac
　　3.安装homebrew
　　4.命令行使用brew install cmake 安装cmake
　　5.cd 到opencv解压后的文件夹，在命令行依次执行以下命令：


mkdir build

cd build

cmake -G "Unix Makefiles" ..

make

sudo make install

至此opencv安装完毕



进入xcode新建命令行mac ox程序，使用c++语言

1.在项目build setting视窗中搜索 search path 修改以下项目

Always search User paths : true

Framework search path: /usr/local/lib

Header Search Paths ：/usr/local/include
Library Search Paths ： /usr/local/lib

2.build setting视窗中搜索 other linker flags

输入 -lopencv_calib3d -lopencv_core -lopencv_features2d -lopencv_flann -lopencv_highgui -lopencv_imgcodecs -lopencv_imgproc -lopencv_ml -lopencv_objdetect -lopencv_photo -lopencv_shape -lopencv_stitching -lopencv_superres -lopencv_ts -lopencv_video -lopencv_videoio -lopencv_videostab

3.在Xcode偏好设置中Location->advanced，把 Unique 改为 Legacy.

4.在项目中新建一个文件夹，选"Add files to ..."，按 command+shift+g 输入路径 /usr/local/lib，把所有lib文件加入

5.完成！可以用以下代码测试，测试的图片路径自己修改：




#include <opencv2/core/core.hpp>
#include <opencv2/imgcodecs.hpp>
#include <opencv2/highgui/highgui.hpp>
#include <iostream>
#include <string>
using namespace cv;
using namespace std;
int main( int argc, char** argv )
{
string imageName("/Users/isware/Documents/MATLAB/Walrus_001.jpg"); // by default
if( argc > 1)
{
imageName = argv[1];
}
Mat image;
image = imread(imageName.c_str(), IMREAD_COLOR); // Read the file
if( image.empty() )                      // Check for invalid input
    {
cout <<  "Could not open or find the image" << std::endl ;
return -1;
}
namedWindow( "Display window", WINDOW_AUTOSIZE ); // Create a window for display.
imshow( "Display window", image );                // Show our image inside it.
waitKey(0); // Wait for a keystroke in the window
return 0;
}