Question

我有以下计划：

#include <iostream>
#include <vector>
#include "opencv2/opencv.hpp"
#include <stdio.h>
using namespace std;
using namespace cv;
int main(int argc, const char** argv)
{
  Mat A = (Mat_<double>(3,3) << -3,-2,-1,  0,1,2,   3,4,5);
  imshow("aa", A);
  waitKey(0);
  cout << "A = " << endl << " " << A << endl << endl;
  Mat B;
  threshold(A, B, 0, 255, THRESH_TOZERO);
  cout << "B = " << endl << " " << B << endl << endl;
}

编译正好。我正在编译如下：
g ++ a.cpp pkg-config opencv --libs pkg-config opencv --cflags

但是当我评论两行时，它会给出编译错误：

#include <iostream>
#include <vector>
#include "opencv2/opencv.hpp"
#include <stdio.h>
using namespace std;
using namespace cv;
int main(int argc, const char** argv)
{
  Mat A = (Mat_<double>(3,3) << -3,-2,-1,  0,1,2,   3,4,5);
  // imshow("aa", A);
  // waitKey(0);
  cout << "A = " << endl << " " << A << endl << endl;
  Mat B;
  threshold(A, B, 0, 255, THRESH_TOZERO);
  cout << "B = " << endl << " " << B << endl << endl;
}

如下：

...../opencv/lib/libopencv_imgproc.so: undefined reference to `m7_ippiFilterSobelVertBorder_32f_C1R'
...../opencv/lib/libopencv_imgproc.so: undefined reference to `n8_ippiFilterSobelNegVertBorder_32f_C1R'
...../opencv/lib/libopencv_imgproc.so: undefined reference to `k0_ippiFilterSobelVertBorder_32f_C1R'
...../opencv/lib/libopencv_imgproc.so: undefined reference to `mx_ippiFilterSobelVertBorder_8u16s_C1R'
...../opencv/lib/libopencv_imgproc.so: undefined reference to `y8_ippiFilterSobelHorizBorder_32f_C1R'
...../opencv/lib/libopencv_imgproc.so: undefined reference to `e9_ippiFilterSobelVertBorder_32f_C1R'

不使用imshow（）时OpenCV3中的编译错误

0 个答案: