当使用“cv :: SimpleBlobDetector”时，OSX 10.7.5 + OpenCV 2.4.3：“架构x86_64的未定义符号”

我想玩弄OpenCV cv::SimpleBlobDetector，但编译我的代码时出现以下错误：当使用“cv :: SimpleBlobDetector”时，OSX 10.7.5 + OpenCV 2.4.3：“架构x86_64的未定义符号”

Ld /Users/dom/Library/Developer/Xcode/DerivedData/blob-test-opencv-dgtflkyexnsjekbwuxnuoisqknux/Build/Products/Debug/blob-test-opencv.app/Contents/MacOS/blob-test-opencv normal x86_64 
    cd /Users/dom/Desktop/blob-test-opencv 
    setenv MACOSX_DEPLOYMENT_TARGET 10.7 

    /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang++ \ 
    -arch x86_64 \ 
    -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.8.sdk \ 
    -L/Users/dom/Library/Developer/Xcode/DerivedData/blob-test-opencv-dgtflkyexnsjekbwuxnuoisqknux/Build/Products/Debug \ 
    -L/usr/local/Cellar/opencv/2.4.3/lib \ 
    -F/Users/dom/Library/Developer/Xcode/DerivedData/blob-test-opencv-dgtflkyexnsjekbwuxnuoisqknux/Build/Products/Debug \ 
    -filelist /Users/dom/Library/Developer/Xcode/DerivedData/blob-test-opencv-dgtflkyexnsjekbwuxnuoisqknux/Build/Intermediates/blob-test-opencv.build/Debug/blob-test-opencv.build/Objects-normal/x86_64/blob-test-opencv.LinkFileList \ 
    -mmacosx-version-min=10.7 \ 
    -fobjc-arc \ 
    -fobjc-link-runtime \ 
    -stdlib=libc++ \ 
    -lopencv_calib3d.2.4.3 \ 
    -lopencv_contrib.2.4.3 \ 
    -lopencv_core.2.4.3 \ 
    -lopencv_features2d.2.4.3 \ 
    -lopencv_flann.2.4.3 \ 
    -lopencv_gpu.2.4.3 \ 
    -lopencv_highgui.2.4.3 \ 
    -lopencv_imgproc.2.4.3 \ 
    -lopencv_legacy.2.4.3 \ 
    -lopencv_ml.2.4.3 \ 
    -lopencv_nonfree.2.4.3 \ 
    -lopencv_objdetect.2.4.3 \ 
    -lopencv_photo.2.4.3 \ 
    -lopencv_stitching.2.4.3 \ 
    -lopencv_ts.2.4.3 \ 
    -lopencv_video.2.4.3 \ 
    -lopencv_videostab.2.4.3 \ 
    -framework Cocoa -o /Users/dom/Library/Developer/Xcode/DerivedData/blob-test-opencv-dgtflkyexnsjekbwuxnuoisqknux/Build/Products/Debug/blob-test-opencv.app/Contents/MacOS/blob-test-opencv 

Undefined symbols for architecture x86_64: 
    "cv::drawKeypoints(cv::Mat const&, std::__1::vector<cv::KeyPoint, std::__1::allocator<cv::KeyPoint> > const&, cv::Mat&, cv::Scalar_<double> const&, int)", referenced from: 
     BlobTest::detectBlobs(cv::Mat) in blob-detector.o 
    "cv::FeatureDetector::detect(cv::Mat const&, std::__1::vector<cv::KeyPoint, std::__1::allocator<cv::KeyPoint> >&, cv::Mat const&) const", referenced from: 
     BlobTest::detectBlobs(cv::Mat) in blob-detector.o 
ld: symbol(s) not found for architecture x86_64 
clang: error: linker command failed with exit code 1 (use -v to see invocation)

的代码，我写这个样子的：

cv::SimpleBlobDetector::Params params; 

params.minDistBetweenBlobs = 10.0; 
params.filterByArea = true; 
params.minArea = 500.0; 
params.maxArea = 1500.0; 

cv::SimpleBlobDetector myBlobDetector(params); 
std::vector<cv::KeyPoint> myBlobs; 

myBlobDetector.detect(image, myBlobs); 

cv::Mat blobImg; 
cv::drawKeypoints(image, myBlobs, blobImg);

我的头前缀文件中包含的OpenCV：

#ifdef __cplusplus 
    #import "opencv2/opencv.hpp" 
#endif

我在OSX 10.7.5上使用OpenCV 2.43（通过brew）在4.52上运行Xcode。

据我可以告诉所有需要的库链接正确（特别是opencv_features2d.2.4.3）和OpenCV编译为我的64位系统。其他OpenCV代码一直在正常工作...我错过了什么吗？

来源

2012-11-26 dom

在xcode的左侧，选择您的项目名称。右侧窗口中，去

Buil Settings>Build Options> Compiler for C/C++/Objective-C

改变它Apple LLVM Compiler到LLVM GCC 4.2。

干杯，

礼

来源

2012-12-25 16:07:03 RezA

这个解决方案给我， “不支持的编译器”。 –

以上回答din't为我工作。

转到构建设置>苹果LLVM 5.0 - 语言 - C++> C++标准库，选择的libC++

来源

2014-01-23 08:10:58

此解决方案导致更多未定义的符号，如cv :: VideoWriter :: open ... –

当使用“cv :: SimpleBlobDetector”时，OSX 10.7.5 + OpenCV 2.4.3：“架构x86_64的未定义符号”

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