OpenCV 3.0.0 with Xcode
Why Stack Overflow recommends it
Stack Overflow users link it when someone needs working Xcode settings for OpenCV 3.0 on a Mac, including the header path, library path and linker flags.
Recommended by 2 people across 2 different months, 2015 to 2020.
What it is
A two and a half minute screencast showing how to configure an Xcode project to build against OpenCV 3.0.0 on OS X Yosemite. It gives the header and library paths and the full list of linker flags, and follows an earlier installation video from the same channel.
What people said
Recommends s123 · 2015-05 · Stack Overflow · on “Need help setting up OpenCV on a Mac”
I stopped trying to get OpenCV to work on the terminal altogether, and very easily got it to work with Xcode after following these directions: [this video] The link assumes that sudo make install was already done. Thanks again for all the help, I learned a bunch of things from that.
Recommends Colin11 · 2015-06 · Stack Overflow · on “Undefined symbols for architecture x86_64:"cv::face::createFisherFaceRecognizer(int, double)", referenced from: _main in main.o”
I followed this tutorial to setup opencv-3.0 with xcode [this video] and I used following linker flag : The default location of the header files is: /usr/local/include The default location of the library files is : /usr/local/lib The additional linker flags are: -lopencv_calib3d -lopencv_core -lopencv_features2d -lopencv_flann -lopencv_highgui -lopencv_imgcodecs -lopencv_imgproc -lopencv_ml -lopencv_objdetect -lopencv_photo -lopencv_shape -lopencv_stitching -lopencv_superres -lopencv_ts -lopencv_video -lopencv_videoio -lopencv_videostab
Cites sniper71 · 2016-07 · Stack Overflow · on “Can't build an OpenCV project in Xcode 6.4 for yosemite”
I am having a problem while trying to set up openCV with Xcode for the first time. I followed the instructions on these two videos openCV setup [LINK] openCV with Xcode [this video] When I try to build the project at the end of video 2 I get the following build error : ld: library not found for -lopencv_imgcodecs I followed the instructions step by step, I did this twice to confirm that I am not missing on any details. Any help is greatly appreciated.
Cites Marcel T · 2016-09 · Stack Overflow · on “XCode Build Failed "undefined Symbols for architecture x86_64"”
SOLVED: FOR OPENCV SOLUTION LOOK UP ANSWER FROM Jvinniec FOR THE FAST.H SOLUTION LOOK UP EDIT I looked up several similar Questions and did not find a Solution for my Code yet. The error I get looks like this: Undefined symbols for architecture x86_64: "fast9_score(unsigned char const*, int, xy*, int, int)", referenced from: detectCornersFast(unsigned char const*, int, int, int, int, int*) in main.o "fast9_detect(unsigned char const*, int, int, int, int, int*)", referenced from: detectCornersFast(unsigned char const*, int, int, int, int, int*) in main.o "nonmax_suppression(xy const*, int const*, int, int*)", referenced from: detectCornersFast(unsigned char const*, int, int, int, int, int*) i
Cites NSCaleb · 2020-10 · Stack Overflow · on “openCV.framework for a swift macOS application”
My goal here is to have opencv embedded in macOS application as static framework. I clone the repo [LINK] cd opencv/platforms/osx python build_framework.py build Then i get the following error ** BUILD FAILED ** The following build commands failed: CompileC platforms/osx/build/build/build-x86_64- macosx/modules/world/OpenCV.build/Release/opencv_world.build/Objects-normal/x86_64/opencv- onnx.pb.o modules/dnn/misc/onnx/opencv-onnx.pb.cc normal x86_64 c++ com.apple.compilers.llvm.clang.1_0.compiler (1 failure) ============================================================ ERROR: Command '['xcodebuild', 'MACOSX_DEPLOYMENT_TARGET=10.12', 'ARCHS=x86_64', '-sdk', 'macosx', '-configuration', 'Release'