Xcode 编译 OpenCV3

下载CMake，https://cmake.org/download/
下载OpenCV源码，解压

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GUI编译方法：
安装，启动CMake
Browse Source 指到OpenCV源码目录
Browse Build 指向一个新的目录，例如/Users/lee/Downloads/opencv-3.4.1/gui_release
Configure
选择Unix Makefiles
等待执行完毕
Generate

cd gui_release
make -j4
sudo make install
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命令行编译方法：
安装，启动CMake，打开 Tools - How to install For Command Line Use，按照说明操作

cd /Users/lee/Downloads/opencv-3.4.1
mkdir release
cd release
cmake -G "Unix Makefiles" ..
make
sudo make install
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在终端中使用：
mkdir TestOpenCV
cd TestOpenCV


vi CMakeLists.txt
#版本
cmake_minimum_required(VERSION 2.8)

#项目名称
project( test )

#设置OpenCV所在目录，为后面的find_package提供位置
#OpenCV_DIR为OpenCV源码编译后得到的文件夹(如上面的release目录)
set( OpenCV_DIR /Users/lee/Downloads/opencv-3.4.1/release )

#会在OpenCV所在目录查找配置文件OpenCVConfig.cmake
find_package( OpenCV REQUIRED )

#向工程添加源文件
add_executable( test main.cpp )

#添加链接库
target_link_libraries( test ${OpenCV_LIBS} )


vi main.cpp
#include 
using namespace cv;
int main(int argc, char** argv) {
    Mat image;
    image = imread("/Users/lee/Downloads/20180128214955.jpg", 1);
    namedWindow("Display Image", WINDOW_AUTOSIZE);
    imshow("Display Image", image);
    waitKey(0);
    return 0;
}


cmake .
make
./test
会显示对应的图片
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在Xcode中使用：
创建C++项目
项目属性 - Build Settings - Search Paths
Header Search Path = /usr/local/include/
Library Search Path = /usr/local/lib
在项目下创建lib目录，Add Files To，Command+Shift+G，输入/Usr/local/lib，将所有不带箭头的文件添加进去

#include 
using namespace cv;
int main(int argc, char** argv) {
    Mat image;
    image = imread("/Users/lee/Downloads/20180128214955.jpg", 1);
    namedWindow("Display Image", WINDOW_AUTOSIZE);
    imshow("Display Image", image);
    waitKey(0);
    return 0;
}

编译运行
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