I tried to use SURF detector and descriptor in opencv3.0.0. However, the error is
Undefined symbols for architecture x86_64:
"cv::xfeatures2d::SURF::create(double, int, int, bool, bool)", referenced from:
_main in main.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
**QT project setting**
QT += core
QT -= gui
TARGET = test4
CONFIG += console
CONFIG -= app_bundle
TEMPLATE = app
INCLUDEPATH += /usr/local/include
INCLUDEPATH += /usr/local/include/opencv
INCLUDEPATH += /usr/local/include/opencv2
LIBS += -L/usr/local/lib \
-lopencv_calib3d \
-lopencv_core \
-lopencv_features2d \
-lopencv_flann \
-lopencv_highgui \
-lopencv_imgcodecs \
-lopencv_imgproc \
-lopencv_ml \
-lopencv_objdetect \
-lopencv_photo \
SOURCES += main.cpp
**Code**
#include
#include
#include
#include
#include
#include
#include
using namespace cv;
using namespace std;
using namespace cv::xfeatures2d;
int main(int argc, char *argv[])
{
Mat img_1 = imread( "../testImg/left.jpg", CV_LOAD_IMAGE_GRAYSCALE );
Mat img_2 = imread( "../testImg/right.jpg", CV_LOAD_IMAGE_GRAYSCALE );
imshow("Display1",img_1);
imshow("Display2",img_2);
if( !img_1.data || !img_2.data ){ std::cout<< 'no image loaded' < f2d = SURF::create(minHessian);
// Ptr f2d = ORB::create();
}
I have checked that nonfree and xfeatures2d are already installed by using cmake.
Ptr f2d = ORB::create(); // is worked but SURF and SIFT don't.
↧
