Question

此代码是关于surf algorithm的示例。但是当我执行此代码时，我有一条错误消息。

错误：错误LNK2019：＆＃34; public：static struct cv :: Ptr __cdecl CV :: xfeatures2d :: SURF ::创建（双，INT，INT，布尔，布尔）＆＃34; （？创建@ SURF @ xfeatures2d @ @@ CV SA？AU？$ PTR @ VSURF @ xfeatures2d @ CV @@@ 3 @ NHH_N0 @ Z）

为什么我有这个错误？我必须使用冲浪算法。关于这个错误的解决方案是什么？

#include <stdio.h>
#include <iostream>
#include "opencv2/core.hpp"
#include "opencv2/features2d.hpp"
#include "opencv2/xfeatures2d.hpp"
#include "opencv2/highgui.hpp"

using namespace cv;
using namespace cv::xfeatures2d;

void readme();

int main()
{
  Mat img_1 = imread( "a.jpg", IMREAD_GRAYSCALE );
  Mat img_2 = imread( "b.jpg", IMREAD_GRAYSCALE );

  if( !img_1.data || !img_2.data )
  { std::cout<< " --(!) Error reading images " << std::endl; return -1; }

  //-- Step 1: Detect the keypoints using SURF Detector
  int minHessian = 400;

  Ptr<SURF> detector = SURF::create( minHessian );

  std::vector<KeyPoint> keypoints_1, keypoints_2;

  detector->detect( img_1, keypoints_1 );
  detector->detect( img_2, keypoints_2 );

  //-- Draw keypoints
  Mat img_keypoints_1; Mat img_keypoints_2;

  drawKeypoints( img_1, keypoints_1, img_keypoints_1, Scalar::all(-1),     DrawMatchesFlags::DEFAULT );
  drawKeypoints( img_2, keypoints_2, img_keypoints_2, Scalar::all(-1),     DrawMatchesFlags::DEFAULT );

  //-- Show detected (drawn) keypoints
  imshow("Keypoints 1", img_keypoints_1 );
  imshow("Keypoints 2", img_keypoints_2 );

  waitKey(0);

  return 0;
  }

  /** @function readme */
  void readme()
      { std::cout << " Usage: ./SURF_detector <img1> <img2>" << std::endl; }

opencv 3.0，关于使用Ptr <surf>（冲浪算法）

0 个答案: