c – OpenCV SURF功能未实现

当我尝试运行示例find_obj.cpp或任何OpenCV SURF程序时,我在执行代码时在命令提示符处得到以下错误.该项目建立没有错误和警告.我使用的是VS2011 beta,OpenCV 2.4和 windows7.

错误信息：

OpenCV Error: The function/feature is not implemented < OpenCV was built without SURF support> in unkNown function,file ..\..\..\src\opencv\modules\legacy\src\features2d.cpp,line 77

我尝试使用Cmake然后VS2011在调试模式下再次构建OpenCV 2.4,然后在IDE中添加了lib路径,但仍然没有结果.

我该如何解决？

#include <opencv2/objdetect/objdetect.hpp>
    #include <opencv2/features2d/features2d.hpp>
    #include <opencv2/core/core.hpp>
    #include <opencv2/highgui/highgui.hpp>
    #include <opencv2/legacy/legacy.hpp>
    #include <opencv2/legacy/compat.hpp>
    #include <opencv2/flann/flann.hpp>
    #include <opencv2/calib3d/calib3d.hpp>
    #include <opencv2/nonfree/features2d.hpp>
    #include <opencv2/nonfree/nonfree.hpp>

using namespace std;
using namespace cv;
int main()
{
    cv::initModule_nonfree();//THIS LINE IS IMPORTANT   

   IplImage *image1 = cvLoadImage("C:\\SURF\\1.jpg"); 
    IplImage *image2 = cvLoadImage("C:\\SURF\\2.jpg");

    CvMemStorage* memoryBlock = cvCreateMemStorage();
    CvSeq* image1KeyPoints;
    CvSeq* image1Descriptors;
    CvSeq* image2KeyPoints;
    CvSeq* image2Descriptors;

    // Only values with a hessian greater than 500 are considered for keypoints
   CvSURFParams params = cvSURFParams(500,1);
   cvExtractSURF(image1,&image1KeyPoints,&image1Descriptors,memoryBlock,params);
   cvExtractSURF(image2,&image2KeyPoints,&image2Descriptors,params);

   return 0;
}

解决方法

从 this answer开始(为什么不问你谷歌你的问题？)：

SIFT和SURF代码在OpenCV v2.4中移动到一个新的模块非自由.确保您正在链接(Windlow中的DLL).在linux中,这个库被称为libopencv_nonfree.so.