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OpenCV安装

2016-03-31 19:02 337 查看

Mac下安装OpenCV(配置Xcode)

在Mac上安装OPenCV,使用的开发工具是Xcode7.3,安装的版本是2.4.12。(这是我第一次使用Markdown编写文档,感觉还不错。2016.03.31)

1.安装Cmake

使用安装工具是Homebrew,但是有个错误,使用命令
brew install cmake
安装cmake在使用的时候会提示找不到
cmake
命令。所以使用
brew cask install cmake
来安装Cmake。猜测是因为
brew cask
能自动链接到程序,而
brew
只是安装,不负责环境变量的设置。

2.下载和编译OPenCV

2.1 下载OpenCV

下载地址

1>官网网站:http://opencv.org

2>sourceforge:http://sourceforge.net/projects/opencvlibrary/

下载完成之后把源代码拷贝到让自己高兴的任何地方。

2.2 编译OPenCV

起初使用的安装方法也是
brew install openCV
安装,但是在运行测试代码的时候报错,libpng相关的错误,未找到解决方法,最终使用以下方法编译:

cd <the path of opencv source>
mkdir build
cd build
cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local ..
make
sudo make install


到此OpenCV的安装已经完成,安装路径为
/usr/local
,该路径可以修改为让你高兴的路径。它安装的文件分布为:

1>头文件:
/usr/local/include
目录包含两个文件夹:
opencv
opencv2


2>lib文件:
/usr/local/lib
目录下包含了
opencv
相关的动态库。

如果想卸载OpenCV,则可以回到
build
目录下,执行
sudo make uninstall
,然后删除上面提到的文件即可。


参考内容:

Building OpenCV from Source Using CMake, Using the Command Line

Installing OpenCV

3.使用Xcode进行OpenCV开发

1.Open Xcode, choose
New->New Project->Command Line Tool


2.Name it and select
C++
for type

3.Click on your project from the left menu. Click the
build settings
tab from the top. Filter all. Scroll to
Search Paths
. Under
header search paths
, for debug and release, set the path to
/usr/local/include
.Under
library search paths
, set the path to
$(PROJECT_DIR)
. Finally, check if
C++ standard library
is
libstdc++
or not, if not, change it to this!

4.Click on your project from the left menu.
File->New->New Group
, Name the group OpenCV Frameworks.

5.Select the folder (group) you just labeled,
OpenCV Frameworks
in the left menu. Go to
File->add Files
, Type
'command+shift+G'
, which will allow you to manually go to a folder. Go to ->
/usr/local/lib


6.Select both of these files,
libopencv_core.dylib
,
libopencv_highgui.dylib
, and click
Add
. (you may need to add other library files from this folder to run other code.)

7.You must include this line of code in the beginning of your main.cpp file:

#include <opencv2/opencv.hpp>


修改main.cpp代码进行测试,如下:

#include <opencv2/opencv.hpp>
using namespace cv;
int main(int argc, char** argv) {
Mat image;
image = imread("/Users/hd/Pictures/hd.jpg", 1);
namedWindow("xx ", WINDOW_AUTOSIZE);
imshow("xx ", image);
waitKey(0);
return 0;
}


参考资料:https://segmentfault.com/a/1190000000711132
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