OpenCV的未定義的引用

Question

我想我的JNI的Android應用程序與OpenCV的鏈接，但我得到這些錯誤

./obj/local/armeabi 
/libopencv_calib3d.a(calibinit.cpp.o): In function `cvDrawChessboardCorners': 
calibinit.cpp:(.text+0x20a): undefined reference to `cvLine' 
calibinit.cpp:(.text+0x244): undefined reference to `cvLine' 
calibinit.cpp:(.text+0x26e): undefined reference to `cvCircle' 
calibinit.cpp:(.text+0x2ec): undefined reference to `cvLine' 
calibinit.cpp:(.text+0x4ce): undefined reference to `cvLine' 
calibinit.cpp:(.text+0x504): undefined reference to `cvLine' 
calibinit.cpp:(.text+0x532): undefined reference to `cvCircle' 
./obj/local/armeabi/libopencv_calib3d.a(calibinit.cpp.o): In function `cvFindChessboardCorners': 
calibinit.cpp:(.text+0x1b6a): undefined reference to `cvRectangle' 
./obj/local/armeabi/libopencv_calib3d.a(calibinit.cpp.o): In function `cv::findCirclesGrid(cv::_InputArray const&, cv::Size_<int>, cv::_OutputArray const&, int, cv::Ptr<cv::FeatureDetector> const&)': 
calibinit.cpp:(.text+0x5058): undefined reference to `cv::FeatureDetector::detect(cv::Mat const&, std::vector<cv::KeyPoint, std::allocator<cv::KeyPoint> >&, cv::Mat const&) const' 
./obj/local/armeabi/libopencv_calib3d.a(circlesgrid.cpp.o): In function `cv::findCirclesGridDefault(cv::_InputArray const&, cv::Size_<int>, cv::_OutputArray const&, int)': 
circlesgrid.cpp:(.text+0x2ce): undefined reference to `cv::SimpleBlobDetector::Params::Params()' 
circlesgrid.cpp:(.text+0x2dc): undefined reference to `cv::SimpleBlobDetector::SimpleBlobDetector(cv::SimpleBlobDetector::Params const&)' 
./obj/local/armeabi/libopencv_calib3d.a(circlesgrid.cpp.o): In function `CirclesGridFinder::drawHoles(cv::Mat const&, cv::Mat&) const': 
circlesgrid.cpp:(.text+0xa56): undefined reference to `cv::line(cv::Mat&, cv::Point_<int>, cv::Point_<int>, cv::Scalar_<double> const&, int, int, int)' 
circlesgrid.cpp:(.text+0xafa): undefined reference to `cv::line(cv::Mat&, cv::Point_<int>, cv::Point_<int>, cv::Scalar_<double> const&, int, int, int)' 
circlesgrid.cpp:(.text+0xb44): undefined reference to `cv::circle(cv::Mat&, cv::Point_<int>, int, cv::Scalar_<double> const&, int, int, int)' 
./obj/local/armeabi/libopencv_calib3d.a(circlesgrid.cpp.o): In function `CirclesGridFinder::drawBasis(std::vector<cv::Point_<float>, std::allocator<cv::Point_<float> > > const&, cv::Point_<float>, cv::Mat&) const': 
circlesgrid.cpp:(.text+0x106c): undefined reference to `cv::line(cv::Mat&, cv::Point_<int>, cv::Point_<int>, cv::Scalar_<double> const&, int, int, int)' 
./obj/local/armeabi/libopencv_calib3d.a(circlesgrid.cpp.o): In function `CirclesGridFinder::drawBasisGraphs(std::vector<Graph, std::allocator<Graph> > const&, cv::Mat&, bool, bool) const': 
circlesgrid.cpp:(.text+0x133c): undefined reference to `cv::circle(cv::Mat&, cv::Point_<int>, int, cv::Scalar_<double> const&, int, int, int)' 
circlesgrid.cpp:(.text+0x13bc): undefined reference to `cv::line(cv::Mat&, cv::Point_<int>, cv::Point_<int>, cv::Scalar_<double> const&, int, int, int)' 
./obj/local/armeabi/libopencv_calib3d.a(circlesgrid.cpp.o): In function `CirclesGridClusterFinder::parsePatternPoints(std::vector<cv::Point_<float>, std::allocator<cv::Point_<float> > > const&, std::vector<cv::Point_<float>, std::allocator<cv::Point_<float> > > const&, std::vector<cv::Point_<float>, std::allocator<cv::Point_<float> > >&)': 
circlesgrid.cpp:(.text+0x3292): undefined reference to `cv::flann::LinearIndexParams::LinearIndexParams()' 
circlesgrid.cpp:(.text+0x32c6): undefined reference to `cv::flann::Index::Index(cv::_InputArray const&, cv::flann::IndexParams const&, cvflann::flann_distance_t)' 
circlesgrid.cpp:(.text+0x346a): undefined reference to `cv::flann::SearchParams::SearchParams(int, float, bool)' 
circlesgrid.cpp:(.text+0x347e): undefined reference to `cv::flann::Index::knnSearch(cv::_InputArray const&, cv::_OutputArray const&, cv::_OutputArray const&, int, cv::flann::SearchParams const&)' 
circlesgrid.cpp:(.text+0x3484): undefined reference to `cv::flann::IndexParams::~IndexParams()' 
circlesgrid.cpp:(.text+0x3658): undefined reference to `cv::flann::Index::~Index()' 
circlesgrid.cpp:(.text+0x365e): undefined reference to `cv::flann::IndexParams::~IndexParams()' 
circlesgrid.cpp:(.text+0x36b6): undefined reference to `cv::flann::Index::~Index()' 
circlesgrid.cpp:(.text+0x36bc): undefined reference to `cv::flann::IndexParams::~IndexParams()' 
circlesgrid.cpp:(.text+0x3702): undefined reference to `cv::flann::IndexParams::~IndexParams()' 
circlesgrid.cpp:(.text+0x370c): undefined reference to `cv::flann::Index::~Index()' 
./obj/local/armeabi/libopencv_calib3d.a(circlesgrid.cpp.o): In function `CirclesGridFinder::computeRNG(Graph&, std::vector<cv::Point_<float>, std::allocator<cv::Point_<float> > >&, cv::Mat*) const': 
circlesgrid.cpp:(.text+0x4b2a): undefined reference to `cv::line(cv::Mat&, cv::Point_<int>, cv::Point_<int>, cv::Scalar_<double> const&, int, int, int)' 
circlesgrid.cpp:(.text+0x4b7e): undefined reference to `cv::circle(cv::Mat&, cv::Point_<int>, int, cv::Scalar_<double> const&, int, int, int)' 
circlesgrid.cpp:(.text+0x4bd4): undefined reference to `cv::circle(cv::Mat&, cv::Point_<int>, int, cv::Scalar_<double> const&, int, int, int)' 
./obj/local/armeabi/libopencv_imgproc.a(contours.cpp.o): In function `cv::drawContours(cv::_OutputArray const&, cv::_InputArray const&, int, cv::Scalar_<double> const&, int, int, cv::_InputArray const&, int, cv::Point_<int>)': 
contours.cpp:(.text+0x3fd2): undefined reference to `cvDrawContours' 
./obj/local/armeabi/libopencv_imgproc.a(samplers.cpp.o): In function `cvSampleLine': 
samplers.cpp:(.text+0x65a2): undefined reference to `cvInitLineIterator' 
./obj/local/armeabi/libopencv_imgproc.a(templmatch.cpp.o): In function `cv::crossCorr(cv::Mat const&, cv::Mat const&, cv::Mat&, cv::Size_<int>, int, cv::Point_<int>, double, int)': 
templmatch.cpp:(.text+0x47e): undefined reference to `cv::getOptimalDFTSize(int)' 
templmatch.cpp:(.text+0x494): undefined reference to `cv::getOptimalDFTSize(int)' 
templmatch.cpp:(.text+0x92c): undefined reference to `cv::dft(cv::_InputArray const&, cv::_OutputArray const&, int, int)' 
templmatch.cpp:(.text+0xfa4): undefined reference to `cv::dft(cv::_InputArray const&, cv::_OutputArray const&, int, int)' 
templmatch.cpp:(.text+0x1006): undefined reference to `cv::mulSpectrums(cv::_InputArray const&, cv::_InputArray const&, cv::_OutputArray const&, int, bool)' 
templmatch.cpp:(.text+0x102e): undefined reference to `cv::dft(cv::_InputArray const&, cv::_OutputArray const&, int, int)' 
collect2: ld returned 1 exit status 
make: *** [obj/local/armeabi/libarengine.so] Error 1 

我有3個模塊鏈接：opencv_core opencv_calib3d opencv_imgproc。我錯過了什麼？

編輯。 我已經添加了opencv_flann庫並減少了錯誤計數。但是cv :: line或者cv :: rectangle被定義在哪裏？

Answer 1

問題出在圖書館的順序。正確的順序是：

LOCAL_STATIC_LIBRARIES := libopencv_calib3d opencv_features2d opencv_flann opencv_imgproc opencv_core 

所以主要的原則是你必須在他們的依賴性相反的順序（申報庫，如* opencv_imgproc *取決於* opencv_core *和* opencv_features2d *取決於* opencv_imgproc *等）。

Answer 2

您錯過了opencv_highgui，也可能是opencv_features2d。

cv::rectangle定義在opencv_core。

確保您的文件與所有這些庫鏈接。

Answer 3

您還可以查看pkg-config --static --libs opencv的輸出以按正確的順序排列庫。