c++ - Opencv，命令行 collect2 : error: ld returned 1 exit status 中缺少 DSO

Question

我在 Ubuntu 14.04 上安装了 OpenCV。我正在尝试在 opencv 网站上学习教程。运行此代码时出现错误。我正在使用 eclipse 运行代码。我在构建项目时遇到此错误。我向 g++ 链接器添加了 opencv_core、opencv_highgui、opencv_imgcodecs 库。

Error message: 

//usr/local/lib/libopencv_imgproc.so.3.0: error adding symbols: DSO missing from command line
collect2: error: ld returned 1 exit status
make: *** [optest01] Error 1

代码:

#include "opencv2/imgproc.hpp"
#include "opencv2/highgui.hpp"
#include <stdlib.h>
#include <stdio.h>

using namespace cv;

/// Global variables

Mat src, src_gray;
Mat dst, detected_edges;

/** @function main */
int main( int argc, char** argv )
{
  /// Load an image
  src = imread( "/images/Lenna.jpg" );

  if( !src.data )
  { return -1; }

  /// Create a matrix of the same type and size as src (for dst)
  dst.create( src.size(), src.type() );

  /// Convert the image to grayscale
  cvtColor( src, src_gray, COLOR_BGR2GRAY );

  return 0;
  }

Answer 1

您的错误代码:

//usr/local/lib/libopencv_imgproc.so.3.0: error adding symbols: DSO missing from command line

告诉你你还没有链接opencv_imgproc。只需链接所需的库:

-lopencv_imgproc