1.安装Xcode
from App Store
2.安装MacPorts(https://www.macports.org/install.PHP)
注意系统版本，因为之前装错了版本，重装还导致了下面的问题
问题：Waiting for other installations to finish(参考：http://superuser.com/questions/169908/installer-hangs-on-waiting-for-other-installations-to-finish-despite-no-other)
解决：Chances are that a prevIoUs installation hung and the lock was never cleaned up.
1）sudo rm /private/var/db/mds/system/mds.install.lock
2) reboot
记得更新下，有点慢。(https://trac.macports.org/ticket/43228）:
Terminal: sudo port selfupdate
3.安装CMake
(http://www.cmake.org/download/)
之前有安装过但是失败了，说是没验证不能运行，重新安装了下还是有这个问题，调整了下mac的安全权限：
(参考：http://www.native-instruments.com/en/support/kNowledge-base/show/949/mac-os-10.8-error-message-...-cant-be-opened-because-it-is-from-an-unidentified-developer./)
发现Terminal里还是不是识别cmake指令，修改路径并export path 也不行(http://blog.csdn.net/ikscher/article/details/8348925),
就装了brew(http://stackoverflow.com/questions/20381128/how-to-install-homebrew-on-mac-osx):
Terminal:ruby-e"$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
然后用brew安装了CMake(https://github.com/travis-ci/travis-ci/issues/2175)
Terminal:
brew update
brew install cmake
4.安装OpenCV(http://opencv.org/downloads.html)
注意下版本，解压。
Terminal：
sudo port uninstall opencvcd opencv的目录mkdir buildcd buildcmake -G "Unix Makefiles" ..make -j8sudo make install
编译静态库(http://blogs.wcode.org/2014/10/howto-install-build-and-use-opencv-macosx-10-10/)1）打开CMake，选好opencv源码路径和静态库存放路径2）点击进行配置，去掉BUILD_SHARED_LIBS、BUILD_TESTS、WITH_1394、WITH_FFMPEG，添加x86_64到CMAKE_OSX_ARCHITECTURES，添加sdk到 CMAKE_OSX_SYSROOT，“/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.9.sdk”3）重新配置并生成4）Terminal：cd 静态库目录make (This will take awhile)sudo make install
5.设置开发者活动目录
Teriminal:sudo /usr/bin/xcode-select –switch /Applications/Xcode.app/Contents/Developer
6.在Qt中使用
安装好Qt在Qt Creator中根据需要添加库，即可INCLUDEPATH += /usr/local/includeDEPENdpath += /usr/local/includemacx: PRE_TARGETDEPS += /usr/local/lib/libopencv*.amacx: LIBS += -L /usr/local/lib/libopencv*开一个控制台测试程序测试之,必要时记得加
QMAKE_MACOSX_DEPLOYMENT_TARGET = 10.9 到pro里
或者
http://stackoverflow.com/questions/14940126/opencv-2-4-3-cant-find-imread-and-surffeaturedetectordetect
原文参考：http://drthitirat.wordpress.com/2014/09/21/install-opencv-2-4-9-and-qt-5-3-2-on-mac-osx-10-9-5-and-xcode-6-0-1/
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