Installation in iOS

Required packages

• GCC 4.x or later
• CMake 2.8 or higher
• Xcode 4.0 or higher

Getting the cutting-edge OpenCV from SourceForge SVN repository

Launch SVN client and checkout either

1. the current OpenCV snapshot from here: http://code.opencv.org/svn/opencv/trunk
2. or the latest tested OpenCV snapshot from here: http://code.opencv.org/svn/opencv/tags/latest_tested_snapshot

In MacOS it can be done using the following command in Terminal:

cd ~/<my_working _directory>
svn co http://code.opencv.org/svn/opencv/trunk

Building OpenCV from source using CMake, using the command line

1. Create a temporary directory, which we denote as <cmake_binary_dir>, where you want to put the generated Makefiles, project files as well the object filees and output binaries

2. Enter the <cmake_binary_dir> and type

   cmake [<some optional parameters>] <path to the OpenCV source directory>
   

   For example

   cd ~/opencv
   cd ..
   mkdir release
   cd release
   cmake -GXcode -DCMAKE_TOOLCHAIN_FILE=../opencv/ios/cmake/Toolchains/Toolchain-iPhoneOS_Xcode.cmake -DCMAKE_INSTALL_PREFIX=../OpenCV_iPhoneOS -DCMAKE_BUILD_TYPE=RELEASE ../opencv
   

3. Enter the created temporary directory (<cmake_binary_dir>) and proceed with:

   xcodebuild -sdk iphoneos -configuration Release -target ALL_BUILD
   xcodebuild -sdk iphoneos -configuration Release -target install install