1

您好，我在使用 aruco 时遇到错误。我只是想从教程中获取一个示例。我按照教程做了所有事情，但我得到了：

    /home/pi/Programs/markerDetection/markerDetection.cpp: In function ‘int main(int, char**)’:
/home/pi/Programs/markerDetection/markerDetection.cpp:26:104: error: invalid initialization of reference of type ‘cv::Ptr<cv::aruco::Dictionary>&’ from expression of type ‘cv::aruco::Dictionary’
   aruco::detectMarkers(inputImage, dictionary, markerCorners, markerIds, parameters, rejectedCandidates);
                                                                                                        ^
In file included from /home/pi/Programs/markerDetection/markerDetection.cpp:6:0:
/home/pi/opencv/include/opencv2/aruco.hpp:176:19: note: in passing argument 2 of ‘void cv::aruco::detectMarkers(cv::InputArray, cv::Ptr<cv::aruco::Dictionary>&, cv::OutputArrayOfArrays, cv::OutputArray, const cv::Ptr<cv::aruco::DetectorParameters>&, cv::OutputArrayOfArrays)’
 CV_EXPORTS_W void detectMarkers(InputArray image, Ptr<Dictionary> &dictionary, OutputArrayOfArrays corners,
                   ^
CMakeFiles/marker.dir/build.make:54: recipe for target 'CMakeFiles/marker.dir/markerDetection.cpp.o' failed
make[2]: *** [CMakeFiles/marker.dir/markerDetection.cpp.o] Error 1
CMakeFiles/Makefile2:60: recipe for target 'CMakeFiles/marker.dir/all' failed
make[1]: *** [CMakeFiles/marker.dir/all] Error 2
Makefile:76: recipe for target 'all' failed
make: *** [all] Error 2

我的代码是：

#include "opencv2/opencv.hpp"
#include "opencv2/imgproc/imgproc.hpp"
#include "opencv2/imgcodecs.hpp"
#include "opencv2/videoio/videoio.hpp"
#include "opencv2/highgui/highgui.hpp"
#include "opencv2/aruco.hpp"
#include <vector>

using namespace cv;
using namespace std;

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

        if(!cap.open(0)){
                return 0;
        }
        for(;;){
                Mat inputImage;
                cap >> inputImage;
                vector< int > markerIds;
                vector< vector<Point2f> > markerCorners, rejectedCandidates;
                aruco::DetectorParameters parameters;
                aruco::Dictionary dictionary = aruco::getPredefinedDictionary(aruco::DICT_6X6_250);
                aruco::detectMarkers(inputImage, dictionary, markerCorners, markerIds, parameters, rejectedCandidates);
                Mat outputImage;
                aruco::drawDetectedMarkers(outputImage, markerCorners, markerIds);
                if(inputImage.empty()) break;
                imshow("Webcam", outputImage);
                if(waitKey(1) >= 0) break;
        }

        return 0;
}

我知道包含太多，代码需要一些工作，但我只需要编译它，我不知道那里发生了什么。功能变了吗？

4

3 回答 3

1

以下代码适用于我：

字典声明：

cv::Ptr<cv::aruco::Dictionary> dictionary =   cv::aruco::getPredefinedDictionary(cv::aruco::DICT_6X6_250);

由于函数getPredefinedDictionary返回一个Ptr<Dictionary> （http://docs.opencv.org/trunk/d9/d6a/group__aruco.html）

检测标记：

cv::aruco::detectMarkers(gray, dictionary, marker_corners, marker_ids);
于 2017-02-08T11:25:15.893 回答
0

我错过了一些包含文件。这些是我现在拥有的：

#include "opencv2/aruco.hpp"
#include <iostream>
#include <stdio.h>
#include <opencv2/highgui.hpp>
#include "opencv2/imgcodecs.hpp"
#include "opencv2/imgproc/imgproc.hpp"
#include "opencv2/core.hpp"
#include "opencv2/videoio/videoio.hpp"
#include <vector>

库是（这些包含在 Project-> Properties->settings->Linker->Input 中）：

opencv_core450.lib
opencv_highgui450.lib
opencv_objdetect450.lib
opencv_videoio450.lib
opencv_imgproc450.lib
opencv_imgcodecs450.lib
opencv_aruco450.lib
opencv_core450d.lib
opencv_highgui450d.lib
opencv_objdetect450d.lib
opencv_videoio450d.lib
opencv_imgproc450d.lib
opencv_imgcodecs450d.lib
opencv_aruco450d.lib

据我所知，opencv_aruco450.lib 没有得到正确保存。这是我的问题。

于 2021-03-02T12:13:03.050 回答
0

我和你有同样的问题。这就是诀窍：

代替：

aruco::DetectorParameters parameters;
aruco::Dictionary dictionary=aruco::getPredefinedDictionary(aruco::DICT_6X6_250);

利用：

cv::Ptr<aruco::DetectorParameters> parameters;
cv::Ptr<aruco::Dictionary> dictionary=aruco::getPredefinedDictionary(aruco::DICT_6X6_250);

我希望它对你有帮助。

于 2016-05-09T18:24:59.117 回答