【OpenCV/aruco】编译相关&创建marker Demo

• 说在前面

操作系统：win10

vs 版本：2017

opencv版本：4.0.1

opencv-contrb版本：4.0.1

• 编译opencv库

 由于aruco并没有直接放在官方的.exe安装包里面，所以要使用的话必须自己编译；笔者是将aruco和opencv放在一块编译的，网上貌似说可以单独编译，木有试过；

相关教程网上有很多，这里提一下一些注意点：

1.  编译可以看看这篇文章：在Windows下编译扩展OpenCV 3.1.0 + opencv_contrib

     opencv版本与contrib版本必须一致；contirb版本在这里

2.  编译完成后需要配置环境变量以及vs链接库和工程库，这部分可以参考浅墨大佬的教程：【OpenCV入门教程之一】 安 装OpenCV：OpenCV 3.0、OpenCV 2.4.8、OpenCV 2.4.9 +VS 开发环境配置

3.  笔者编译完后是x86版本，在vs中调试的时候选择对应的版本

 4.  编译后若..\opencv\x86\vc15\lib 路径下的lib文件不是以d结尾，生成和调试的时候请改为release;否则可能会出现以下错误

1>artest.obj : error LNK2019: 无法解析的外部符号 "void __cdecl cv::imshow(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &,class cv::debug_build_guard::_InputArray const &)" ([email protected]@@[email protected][email protected]@[email protected]@[email protected]@[email protected]@[email protected]@[email protected][email protected]@@Z)，该符号在函数 _main 中被引用
1>artest.obj : error LNK2019: 无法解析的外部符号 "void __cdecl cv::aruco::drawMarker(struct cv::Ptr<class cv::aruco::Dictionary> const &,int,int,class cv::debug_build_guard::_OutputArray const &,int)" ([email protected]@[email protected]@[email protected]@[email protected]@@@[email protected][email protected][email protected]@[email protected])，该符号在函数 _main 中被引用
1>D:\Program Files\opencv\proj\artest\Debug\artest.exe : fatal error LNK1120: 2 个无法解析的外部命令

5.  把库文件名贴一下

opencv_flann401.lib
opencv_shape401.lib
opencv_fuzzy401.lib
opencv_stereo401.lib
opencv_gapi401.lib
opencv_stitching401.lib
opencv_hfs401.lib
opencv_structured_light401.lib
opencv_highgui401.lib
opencv_superres401.lib
opencv_imgcodecs401.lib
opencv_surface_matching401.lib
opencv_aruco401.lib
opencv_imgproc401.lib
opencv_text401.lib
opencv_bgsegm401.lib
opencv_img_hash401.lib
opencv_tracking401.lib
opencv_bioinspired401.lib
opencv_line_descriptor401.lib
opencv_video401.lib
opencv_calib3d401.lib
opencv_ml401.lib
opencv_videoio401.lib
opencv_ccalib401.lib
opencv_objdetect401.lib
opencv_videostab401.lib
opencv_core401.lib
opencv_optflow401.lib
opencv_xfeatures2d401.lib
opencv_datasets401.lib
opencv_phase_unwrapping401.lib
opencv_ximgproc401.lib
opencv_dnn401.lib
opencv_photo401.lib
opencv_xobjdetect401.lib
opencv_dnn_objdetect401.lib
opencv_plot401.lib
opencv_xphoto401.lib
opencv_dpm401.lib
opencv_reg401.lib
opencv_face401.lib
opencv_rgbd401.lib
opencv_features2d401.lib
opencv_saliency401.lib

• 第一个demo-create marker

#include <opencv2\highgui.hpp>
#include <opencv2\aruco.hpp>
#include <opencv2\aruco\dictionary.hpp>
#include <vector>
#include <iostream>

using namespace std;
using namespace cv;

int main() 
{
	cv::Mat markerImage;//创建存储marker的Mat对象
	cv::aruco::Dictionary mDictionary = cv::aruco::getPredefinedDictionary(cv::aruco::DICT_6X6_250);//创建字典
	cv::aruco::drawMarker(&mDictionary, 23, 200, markerImage, 1);//生成marker ID:23  大小200x200像素  存放至Mat对象

	imshow("test", markerImage);//显示marker
	waitKey();
	return 0;
}

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