哪些c++ OpenCV库支持' threshold '函数?

我是c++的新手，并试图实现下面的OpenCV阈值教程。教程:http://docs.opencv.org/2.4/doc/tutorials/imgproc/threshold/threshold.html basic-threshold

代码几乎可以编译除了两个函数:

• threshold()
• cvtColor()

如果这些函数被删除，那么我可以编译和运行，但这有点违背了教程的目的。

错误:

Undefined symbols for architecture x86_64:
  "cv::cvtColor(cv::_InputArray const&, cv::_OutputArray const&, int, int)", referenced from:
      _main in HelloWorld.o
  "cv::threshold(cv::_InputArray const&, cv::_OutputArray const&, double, double, int)", referenced from:
      Threshold_Demo(int, void*) in HelloWorld.o

我的图书馆通过pkg-config --libs opencv:

-lopencv_calib3d -lopencv_contrib -lopencv_core -lopencv_features2d -lopencv_flann -lopencv_gpu -lopencv_highgui -lopencv_imgproc -lopencv_legacy -lopencv_ml -lopencv_nonfree -lopencv_objdetect -lopencv_ocl -lopencv_photo - lopencv_- lopencv_superres -lopencv_video -lopencv_videostab

教程代码:

#include "opencv2/imgproc/imgproc.hpp"
#include "opencv2/highgui/highgui.hpp"
#include <stdlib.h>
#include <stdio.h>
using namespace cv;
/// Global variables
int threshold_value = 0;
int threshold_type = 3;;
int const max_value = 255;
int const max_type = 4;
int const max_BINARY_value = 255;
Mat src, src_gray, dst;
char* window_name = "Threshold Demo";
char* trackbar_type = "Type: n 0: Binary n 1: Binary Inverted n 2: Truncate n 3: To Zero n 4: To Zero Inverted";
char* trackbar_value = "Value";
/// Function headers
void Threshold_Demo( int, void* );
/**
 * @function main
 */
int main( int argc, char** argv )
{
  /// Load an image
  src = imread( argv[1], 1 );
  /// Convert the image to Gray
  cvtColor( src, src_gray, CV_BGR2GRAY );
  /// Create a window to display results
  namedWindow( window_name, CV_WINDOW_AUTOSIZE );
  /// Create Trackbar to choose type of Threshold
  createTrackbar( trackbar_type,
                  window_name, &threshold_type,
                  max_type, Threshold_Demo );
  createTrackbar( trackbar_value,
                  window_name, &threshold_value,
                  max_value, Threshold_Demo );
  /// Call the function to initialize
  Threshold_Demo( 0, 0 );
  /// Wait until user finishes program
  while(true)
  {
    int c;
    c = waitKey( 20 );
    if( (char)c == 27 )
      { break; }
   }
}

/**
 * @function Threshold_Demo
 */
void Threshold_Demo( int, void* )
{
  /* 0: Binary
     1: Binary Inverted
     2: Threshold Truncated
     3: Threshold to Zero
     4: Threshold to Zero Inverted
   */
  threshold( src_gray, dst, threshold_value, max_BINARY_value,threshold_type );
  imshow( window_name, dst );
}

我来自Ruby背景，那里的库管理要简单得多。如果你能帮我调试这个程序，我将不胜感激。

Edit:我在Mac上使用Eclipse编辑器