c++ - OpenCV (C++/Qt) - cornerSubPix 错误

Question

您好!

我在使用 imgproc.hpp 文件中的 cornerSubPix 方法时遇到问题。 我不明白缺少哪个库或有什么错误。 我在 OS X 10.10.3 上使用 Qt 5.4.1，并使用 OpenCV 3.0.0 C++ 库。

这是我的代码:

    #include <opencv2/opencv.hpp>
    #include <opencv2/core/types.hpp>
    #include <opencv2/highgui/highgui.hpp>
    #include <opencv2/imgproc.hpp>
    #include <opencv2/features2d/features2d.hpp>
    #include <vector>
    #include <stdio.h>
    #include "cameraparams.h"
    #include <iostream>

    [...]

    vector< vector <Point2f> > left_2D_points, right_2D_points;

        for( int i=0;i<left_images.size();i++){

            Mat left_image = left_images[i];
            Mat rig

ht_image = right_images[i];
        std::vector<cv::Point2f> left_im_points,right_im_points;

        bool found_left = findChessboardCorners(left_image,Size(width,height),left_im_points,CALIB_CB_ADAPTIVE_THRESH + CALIB_CB_NORMALIZE_IMAGE+ CALIB_CB_FAST_CHECK);
        bool found_right = findChessboardCorners(right_image,Size(width,height),right_im_points,CALIB_CB_ADAPTIVE_THRESH + CALIB_CB_NORMALIZE_IMAGE+ CALIB_CB_FAST_CHECK);

        if( found_left && found_right){
              Size winSize = Size( 7, 7 );
              Size zeroZone = Size( -1, -1 );
              TermCriteria criteria = TermCriteria( TermCriteria::EPS + TermCriteria::MAX_ITER, 40, 0.001 );

              cv::cornerSubPix(left_image,left_im_points,winSize,zeroZone,criteria);

        }

    }

这是我的 *.pro 文件:

INCLUDEPATH +=  /usr/local/include/ \
                /usr/local/include/pcl-1.7/ \
                /usr/local/include/eigen3/ \
                /usr/local/include/vtk-6.2/

LIBS += -L/usr/local/lib \
        -lopencv_core \
        -lopencv_imgcodecs \
        -lopencv_highgui \
        -lopencv_imgproc \
        -lopencv_objdetect \
        -lopencv_calib3d \
        -lopencv_features2d \
        -lopencv_flann \
        -lopencv_ml \
        -lopencv_photo \
        -lopencv_shape \
        -lopencv_stitching \
        -lopencv_superres \
        -lopencv_ts \
        -lopencv_video \
        -lopencv_videoio \
        -lopencv_videostab

所以我想在我的棋盘上更精确地检测角点。但是当我编译时出现这个错误:

Undefined symbols for architecture x86_64:
  "cv::_InputArray::getMatVector(std::vector<cv::Mat, std::allocator<cv::Mat> >&) const", referenced from:
      vtable for cv::_InputOutputArray in calibrator.o
  "cv::_InputArray::getUMatVector(std::vector<cv::UMat, std::allocator<cv::UMat> >&) const", referenced from:
      vtable for cv::_InputOutputArray in calibrator.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make: *** [Classification] Error 1

几天以来我一直在寻找答案，但我已经被屏蔽了。 提前感谢大家的任何线索!

Answer 1

我上次使用相同的配置(Mac OS 10.10.3、Qt 5.4.1、OpenCV 3.0)遇到了同样的问题。编译器 clang 似乎与 opencv 3.0 不兼容。

使用旧版本的opencv(例如2.4.10)可能会解决问题。

玩得开心，祝你好运:)