OpenCVSquares Multitarget version

opencv2 framework - for Xcode 4.4+/OSX10.7

OpenCV framework - for XCode 4.2/OSX10.6

Three targets

• OpenCV_SL - OpenCV framework + Xibs for Xcode 4.2 and Snow Leopard

• OpenCVSquaresXIB - opencv2 framework + Xibs
  For Xcode 4.4+ and OSX10.7+

• OpenCVSquares - opencv2 framework + Storyboards
  For Xcode 4.4+ and OSX10.7+

OpenCV computer vision with iOS

2/1/2013 openCV library compiled from latest gitHub clone

UIImage+OpenCV category code from
http://aptogo.co.uk/2011/09/opencv-framework-for-ios/

Requirements: OSX10.7+ XCode4.4+ iOS5.0+

integrating openCV and C++ with objective-C

This is a sample application using openCV in iOS. It adapts the "squares.cpp" sample code included with the openCV distribution. https://github.com/Itseez/opencv/blob/master/samples/cpp/squares.cpp

Prompted from a question on stack overflow:

http://stackoverflow.com/questions/13958321/iosretrieve-rectangle-shaped-image-from-the-background-image?lq=1

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The aim is to keep the original c++ code as pristine as possible, and to keep the bulk of the work with openCV in pure c++ files for (im)portability.

CVViewController.h / CVViewController.m

• pure Objective-C

• communicates with openCV c++ code via a WRAPPER... it neither knows nor cares that c++ is processing these method calls behind the wrapper.

CVWrapper.h / CVWrapper.mm

• objective-C++

does as little as possible, really only two things...

• calls to UIImage objC++ categories to convert to and from UIImage <> cv::Mat
• mediates between CVViewController's obj-C methods and CVSquares c++ (class) function calls

CVSquares.h / CVSquares.cpp

• pure C++
• CVSquares.cpp declares public functions inside a class definition (in this case, one static function).
  This replaces the work of main{} in the original file.
• We try to keep CVSquares.cpp as close as possible to the C++ original for portability.

UIImage+OpenCV

This UIImage category is an objC++ file containing the code to convert between UIImage and cv::Mat image formats.