c++ opencv linker undefined-reference surf

c++ - OpenCV-referencia no definida: SurfFeatureDetector y BruteForceMatcher



linker undefined-reference (7)

Realmente no sé cuál es el problema.

El problema es muy probablemente la línea de enlace incorrecta. Desafortunadamente, usted no dijo cuál es su línea de enlace, por lo que no se podría brindar más ayuda. Leer this puede ser útil.

Estoy haciendo un programa en C ++ que usa 2 imágenes para detectar las características de SURF, calcular las coincidencias con un bruteforcematcher y dibujarlo.

Aquí está el código

#include <cstdio> #include <string> #include <vector> #include "opencv/cv.h" #include "opencv/highgui.h" #include "opencv2/features2d/features2d.hpp" using namespace cv; using namespace std; int main(int argc, char **argv){ if (argc <3) { cout << "Usage: " << argv[0] << " imageLocation1 imageLocation2" << endl; return -1; } Mat source1 = imread(argv[1],CV_LOAD_IMAGE_GRAYSCALE); Mat source2 = imread(argv[2],CV_LOAD_IMAGE_GRAYSCALE); if(source1.empty() || source2.empty()){ printf("Can''t load all the images!"); return -1; } //Initialise the Wrapping Class for Surf() SurfFeatureDetector detector(400); //detect : first param: Image, second param: vector (output) vector<KeyPoint> keypoints1,keypoints2; detector.detect(source1,keypoints1); detector.detect(source2,keypoints2); //Initialise wrapping class for descriptors computing using SURF() class. SurfDescriptorExtractor extractor; //Compute: Input:image, keypoints Output:descriptors Mat descriptors1,descriptors2; extractor.compute(source1,keypoints1,descriptors1); extractor.compute(source2,keypoints2,descriptors2); //Initialise BruteForceMatcher: For each descriptor in the first set, this matcher finds the closest descriptor in the second set by trying each on (=brute) BruteForceMatcher< L2<float> > matcher; vector< DMatch > matches; //match: execute the matcher! matcher.match(descriptors1,descriptors2, matches); //Draw the matches with drawMatches Mat target; drawMatches(source1,keypoints1,source2,keypoints2,matches,target); imshow("Matches", target); waitKey(0); return 0; }

La construcción no es un problema, pero al vincular, recibo estos errores muy desagradables:

CMakeFiles/opg13.dir/src/lennart_martens_opgave13.o: In function `cv::BruteForceMatcher<cv::L2<float> >::~BruteForceMatcher()'': lennart_martens_opgave13.cpp:(.text._ZN2cv17BruteForceMatcherINS_2L2IfEEED2Ev[_ZN2cv17BruteForceMatcherINS_2L2IfEEED5Ev]+0xb): undefined reference to `cv::DescriptorMatcher::~DescriptorMatcher()'' CMakeFiles/opg13.dir/src/lennart_martens_opgave13.o: In function `cv::BruteForceMatcher<cv::L2<float> >::~BruteForceMatcher()'': lennart_martens_opgave13.cpp:(.text._ZN2cv17BruteForceMatcherINS_2L2IfEEED0Ev[_ZN2cv17BruteForceMatcherINS_2L2IfEEED5Ev]+0x12): undefined reference to `cv::DescriptorMatcher::~DescriptorMatcher()'' CMakeFiles/opg13.dir/src/lennart_martens_opgave13.o: In function `main'': lennart_martens_opgave13.cpp:(.text.startup+0x172): undefined reference to `cv::SurfFeatureDetector::SurfFeatureDetector(double, int, int, bool)'' lennart_martens_opgave13.cpp:(.text.startup+0x24f): undefined reference to `cv::FeatureDetector::detect(cv::Mat const&, std::vector<cv::KeyPoint, std::allocator<cv::KeyPoint> >&, cv::Mat const&) const'' lennart_martens_opgave13.cpp:(.text.startup+0x30a): undefined reference to `cv::FeatureDetector::detect(cv::Mat const&, std::vector<cv::KeyPoint, std::allocator<cv::KeyPoint> >&, cv::Mat const&) const'' lennart_martens_opgave13.cpp:(.text.startup+0x346): undefined reference to `cv::SurfDescriptorExtractor::SurfDescriptorExtractor(int, int, bool, bool)'' lennart_martens_opgave13.cpp:(.text.startup+0x495): undefined reference to `cv::DescriptorExtractor::compute(cv::Mat const&, std::vector<cv::KeyPoint, std::allocator<cv::KeyPoint> >&, cv::Mat&) const'' lennart_martens_opgave13.cpp:(.text.startup+0x4bb): undefined reference to `cv::DescriptorExtractor::compute(cv::Mat const&, std::vector<cv::KeyPoint, std::allocator<cv::KeyPoint> >&, cv::Mat&) const'' lennart_martens_opgave13.cpp:(.text.startup+0x5ac): undefined reference to `cv::DescriptorMatcher::match(cv::Mat const&, cv::Mat const&, std::vector<cv::DMatch, std::allocator<cv::DMatch> >&, cv::Mat const&) const'' lennart_martens_opgave13.cpp:(.text.startup+0x6de): undefined reference to `cv::drawMatches(cv::Mat const&, std::vector<cv::KeyPoint, std::allocator<cv::KeyPoint> > const&, cv::Mat const&, std::vector<cv::KeyPoint, std::allocator<cv::KeyPoint> > const&, std::vector<cv::DMatch, std::allocator<cv::DMatch> > const&, cv::Mat&, cv::Scalar_<double> const&, cv::Scalar_<double> const&, std::vector<char, std::allocator<char> > const&, int)'' lennart_martens_opgave13.cpp:(.text.startup+0x781): undefined reference to `cv::DescriptorMatcher::~DescriptorMatcher()'' lennart_martens_opgave13.cpp:(.text.startup+0x7ad): undefined reference to `vtable for cv::SurfDescriptorExtractor'' lennart_martens_opgave13.cpp:(.text.startup+0x7b5): undefined reference to `cv::DescriptorExtractor::~DescriptorExtractor()'' lennart_martens_opgave13.cpp:(.text.startup+0x7d8): undefined reference to `vtable for cv::SurfFeatureDetector'' lennart_martens_opgave13.cpp:(.text.startup+0x7e0): undefined reference to `cv::FeatureDetector::~FeatureDetector()'' lennart_martens_opgave13.cpp:(.text.startup+0x8c8): undefined reference to `vtable for cv::SurfFeatureDetector'' lennart_martens_opgave13.cpp:(.text.startup+0x8d0): undefined reference to `cv::FeatureDetector::~FeatureDetector()'' lennart_martens_opgave13.cpp:(.text.startup+0x942): undefined reference to `vtable for cv::SurfDescriptorExtractor'' lennart_martens_opgave13.cpp:(.text.startup+0x94a): undefined reference to `cv::DescriptorExtractor::~DescriptorExtractor()'' lennart_martens_opgave13.cpp:(.text.startup+0x9a2): undefined reference to `cv::DescriptorMatcher::~DescriptorMatcher()'' CMakeFiles/opg13.dir/src/lennart_martens_opgave13.o:(.rodata._ZTVN2cv17BruteForceMatcherINS_2L2IfEEEE[vtable for cv::BruteForceMatcher<cv::L2<float> >]+0x10): undefined reference to `cv::DescriptorMatcher::add(std::vector<cv::Mat, std::allocator<cv::Mat> > const&)'' CMakeFiles/opg13.dir/src/lennart_martens_opgave13.o:(.rodata._ZTVN2cv17BruteForceMatcherINS_2L2IfEEEE[vtable for cv::BruteForceMatcher<cv::L2<float> >]+0x14): undefined reference to `cv::DescriptorMatcher::clear()'' CMakeFiles/opg13.dir/src/lennart_martens_opgave13.o:(.rodata._ZTVN2cv17BruteForceMatcherINS_2L2IfEEEE[vtable for cv::BruteForceMatcher<cv::L2<float> >]+0x18): undefined reference to `cv::DescriptorMatcher::empty() const'' CMakeFiles/opg13.dir/src/lennart_martens_opgave13.o:(.rodata._ZTVN2cv17BruteForceMatcherINS_2L2IfEEEE[vtable for cv::BruteForceMatcher<cv::L2<float> >]+0x20): undefined reference to `cv::DescriptorMatcher::train()'' CMakeFiles/opg13.dir/src/lennart_martens_opgave13.o:(.rodata._ZTVN2cv17BruteForceMatcherINS_2L2IfEEEE[vtable for cv::BruteForceMatcher<cv::L2<float> >]+0x24): undefined reference to `cv::DescriptorMatcher::read(cv::FileNode const&)'' CMakeFiles/opg13.dir/src/lennart_martens_opgave13.o:(.rodata._ZTVN2cv17BruteForceMatcherINS_2L2IfEEEE[vtable for cv::BruteForceMatcher<cv::L2<float> >]+0x28): undefined reference to `cv::DescriptorMatcher::write(cv::FileStorage&) const'' CMakeFiles/opg13.dir/src/lennart_martens_opgave13.o:(.rodata._ZTVN2cv17BruteForceMatcherINS_2L2IfEEEE[vtable for cv::BruteForceMatcher<cv::L2<float> >]+0x30): undefined reference to `cv::BruteForceMatcher<cv::L2<float> >::knnMatchImpl(cv::Mat const&, std::vector<std::vector<cv::DMatch, std::allocator<cv::DMatch> >, std::allocator<std::vector<cv::DMatch, std::allocator<cv::DMatch> > > >&, int, std::vector<cv::Mat, std::allocator<cv::Mat> > const&, bool)'' CMakeFiles/opg13.dir/src/lennart_martens_opgave13.o:(.rodata._ZTVN2cv17BruteForceMatcherINS_2L2IfEEEE[vtable for cv::BruteForceMatcher<cv::L2<float> >]+0x34): undefined reference to `cv::BruteForceMatcher<cv::L2<float> >::radiusMatchImpl(cv::Mat const&, std::vector<std::vector<cv::DMatch, std::allocator<cv::DMatch> >, std::allocator<std::vector<cv::DMatch, std::allocator<cv::DMatch> > > >&, float, std::vector<cv::Mat, std::allocator<cv::Mat> > const&, bool)'' CMakeFiles/opg13.dir/src/lennart_martens_opgave13.o:(.rodata._ZTIN2cv17BruteForceMatcherINS_2L2IfEEEE[typeinfo for cv::BruteForceMatcher<cv::L2<float> >]+0x8): undefined reference to `typeinfo for cv::DescriptorMatcher'' collect2: ld gaf exit-status 1 terug make[2]: *** [bin/opg13] Fout 1 make[1]: *** [CMakeFiles/opg13.dir/all] Fout 2 make: *** [all] Fout 2

Realmente no sé cuál es el problema. No encontré nada en internet. ¡Espero que alguien pueda ayudar!

Edición: Este es mi CMakeLists.txt:

cmake_minimum_required(VERSION 2.4) PROJECT(LABO5) # paths INCLUDE_DIRECTORIES(src) INCLUDE_DIRECTORIES(/usr/local/include) LINK_DIRECTORIES(/usr/local/lib) LINK_DIRECTORIES(/usr/lib) SET(EXECUTABLE_OUTPUT_PATH ${CMAKE_SOURCE_DIR}/bin) SET(LIBRARY_OUTPUT_PATH ${CMAKE_SOURCE_DIR}/bin) SET(CMAKE_CXX_FLAGS "-o3 -w") SET(CMAKE_CXX_LINK_FLAGS "-pg") SET(OpenCV_LIBRARIES opencv_core opencv_highgui opencv_imgproc ) ADD_EXECUTABLE(opg13 src/lennart_martens_opgave13.cpp) TARGET_LINK_LIBRARIES(opg13 ${OpenCV_LIBRARIES}) SET(CMAKE_BUILD_TYPE Release)

Para SURF, @Mingyi Wu ha respondido. Para BruteForceMatcher , por favor

#include <opencv2/legacy/legacy.hpp>

Si está utilizando opencv 2.4, las interfaces SURF y SIFT se cambian a una carpeta no libre. Puedes usarlo incluyendo esta línea.

#include <opencv2/nonfree/features2d.hpp>

entonces puedes usar SurfFeatureDetector como antes.

Tuve este problema después de actualizar OpenCV de 2.3.1 a 2.4.5, y resolví este problema vinculando opencv_nonfree, y agregue los encabezados necesarios para mi proyecto:

#include "opencv2/highgui/highgui.hpp" #include "opencv2/calib3d/calib3d.hpp" #include "opencv2/nonfree/features2d.hpp" #include "opencv2/imgproc/imgproc.hpp"

Tuve un problema similar después de instalar ROS. El problema era que estaba enlazando a las bibliotecas equivocadas.

Solucioné los errores de enlace agregando la siguiente línea a mi CMakeLists.txt: link_directories(/opt/ros/groovy/lib)