Question

我正在尝试在eclipse luna上的ubuntu 14.04下构建一个opencv 3.0.0视频项目。这是代码示例：

 #include <opencv2/opencv.hpp>
 #include <opencv2/highgui.hpp>
 #include <opencv2/videoio.hpp>

 using namespace cv;

 int main( int argc, char** argv )
 {
  VideoCapture cap(0);

  Mat edges;
  namedWindow("edges", 1);
   while(1) {
      Mat frame;
      cap >> frame;
      cvtColor(frame, edges, CV_BGR2GRAY);
      GaussianBlur(edges, edges, Size(7,7), 1.5, 1.5);
      Canny(edges, edges, 0, 30, 3);
      imshow("edges", edges);

   if(waitKey(30) >= 0)     break;
   }
  return 0;
 }

我收到以下错误：

undefined reference to symbol '_ZN2cv12GaussianBlurERKNS_11_InputArrayERKNS_12_OutputArrayENS_5Size_IiEEddi'
//usr/local/lib/libopencv_imgproc.so.3.0: error adding symbols: DSO missing from command line
 collect2: error: ld returned 1 exit status

我的其他过滤器出现了类似的错误：

undefined reference to symbol '_ZN2cv8cvtColorERKNS_11_InputArrayERKNS_12_OutputArrayEii'

undefined reference to symbol '_ZN2cv5CannyERKNS_11_InputArrayERKNS_12_OutputArrayEddib'

我正在链接（-l）这些库：

opencv_core
opencv_videoio
opencv_imgcodecs
opencv_highgui
opencv_objdetect

有什么想法吗？

Answer 1

这些符号位于imgproc库中。因此，您应该将opencv_imgproc添加到与-l。

链接的库列表中

在eclipse上使用opencv 3.0时链接错误

1 个答案: