win10 下的opencv3.2.0實現tracker常見問題----必要條件整理

在opencv中常常要實現對視頻中的目標進行追蹤，一些比較新的方法（比如MIL、KCF、TLD等）都在opencv_contrib庫里，所以首先你需要下載安裝opencv_contrib庫，詳見在win10下實現openCV3.2.0+vs2015+cmake出錯解決方案 。這里需要說明的是我的系統是win10的，所以開發環境均在win10下，以下不做特殊說明均在win10下完成。
關於tracking官網提供了其參考資料Tracking API 、Introduction to OpenCV Tracker 。
opencv3.X以后將目標追蹤方法集成到tracking上，集成圖如下：

tracking實現的思路如下：

●創建tracker對象 
●使用roiSelector函數的功能，從指定的圖像中選擇ROI 
●在圖像中跟蹤特定的區域

這里我引入了一段網上的代碼，也是官網的代碼稍加修改：

#include <opencv2/core/utility.hpp>
#include <opencv2/tracking/tracking.hpp>
#include <opencv2/videoio.hpp>
#include <opencv2/highgui.hpp>
#include <iostream>
#include <cstring>
using namespace std;
using namespace cv;

int main(int argc, char** argv) {
	// declares all required variables
	Rect2d roi;
	Mat frame;
	// create a tracker object
	Ptr<Tracker> tracker = Tracker::create("KCF");
	// set input video
	//  std::string video = argv[1];
	VideoCapture cap("dount.avi");
	// get bounding box
	cap >> frame;
	roi = selectROI("tracker", frame);
	//quit if ROI was not selected
	if (roi.width == 0 || roi.height == 0)
		return 0;
	// initialize the tracker
	tracker->init(frame, roi);
	// perform the tracking process
	printf("Start the tracking process, press ESC to quit.\n");
	for (;; ) {
		// get frame from the video
		cap >> frame;
		// stop the program if no more images
		if (frame.rows == 0 || frame.cols == 0)
			break;
		// update the tracking result
		tracker->update(frame, roi);
		// draw the tracked object
		rectangle(frame, roi, Scalar(255, 0, 0), 2, 1);
		// show image with the tracked object
		imshow("tracker", frame);
		//quit on ESC button
		if (waitKey(1) == 27)break;
	}
	return 0;
}

運行這段代碼有兩個環境變量要配置：

1.   Ptr<Tracker> tracker = Tracker::create("KCF");報錯；

原因是我們要將opencv_contrib庫里的tracking引入工程中，這里有兩種方法：

    a.直接將opencv_contrib庫里tracking文件夾復制到opencv2下，並將tracking文件夾中的tracking文件夾中的內容復制到最外層文件夾里，

復制后的結果：

b.將cmake編譯后的文件夾中的include目錄引入工程中：VC++目錄-->包含目錄，添加：   D:\work\opencv\myopencv\install\include

這樣編譯就沒有錯誤了。

由於我用的第一種方法所以遇到了一個這樣的錯誤：

錯誤  C1014：包含文件太多：深度=1024

出現這個錯誤可能的原因是opencv2中有文件重復。

 

2.編譯鏈接時出現了無法編譯的外部錯誤：

嚴重性	代碼	說明	項目	文件	行	禁止顯示狀態
錯誤	LNK2019	無法解析的外部符號 "public: bool __cdecl cv::Tracker::init(class cv::Mat const &,class cv::Rect_<double> const &)" (?init@Tracker@cv@@QEAA_NAEBVMat@2@AEBV?$Rect_@N@2@@Z)，該符號在函數 main 中被引用	point_collect	D:\work\project\point_collect\point_collect\質點追蹤.obj	1

一共有四個這里顯示了一個，原因就是沒引入tracking的動態鏈接庫，就是要將cmake后的文件夾下的動態鏈接庫引入到工程中，

然后配置輸入文件的附加依賴項：

這里注意如果是

Debug：

opencv_aruco320d.lib

opencv_bgsegm320d.lib

opencv_bioinspired320d.lib

opencv_calib3d320d.lib

opencv_ccalib320d.lib

opencv_core320d.lib

opencv_datasets320d.lib

opencv_dnn320d.lib

opencv_dpm320d.lib

opencv_face320d.lib

opencv_features2d320d.lib

opencv_flann320d.lib

opencv_fuzzy320d.lib

opencv_highgui320d.lib

opencv_imgcodecs320d.lib

opencv_imgproc320d.lib

opencv_line_descriptor320d.lib

opencv_ml320d.lib

opencv_objdetect320d.lib

opencv_optflow320d.lib

opencv_phase_unwrapping320d.lib

opencv_photo320d.lib

opencv_plot320d.lib

opencv_reg320d.lib

opencv_rgbd320d.lib

opencv_saliency320d.lib

opencv_shape320d.lib

opencv_stereo320d.lib

opencv_stitching320d.lib

opencv_structured_light320d.lib

opencv_superres320d.lib

opencv_surface_matching320d.lib

opencv_text320d.lib

opencv_tracking320d.lib

opencv_video320d.lib

opencv_videoio320d.lib

opencv_videostab320d.lib

opencv_xfeatures2d320d.lib

opencv_ximgproc320d.lib

opencv_xobjdetect320d.lib

opencv_xobjdetect320d.lib

 否則：

opencv_aruco320.lib
opencv_bgsegm320.lib
opencv_bioinspired320.lib
opencv_calib3d320.lib
opencv_ccalib320.lib
opencv_core320.lib
opencv_datasets320.lib
opencv_dnn320.lib
opencv_dpm320.lib
opencv_face320.lib
opencv_features2d320.lib
opencv_flann320.lib
opencv_fuzzy320.lib
opencv_highgui320.lib
opencv_imgcodecs320.lib
opencv_imgproc320.lib
opencv_line_descriptor320.lib
opencv_ml320.lib
opencv_objdetect320.lib
opencv_optflow320.lib
opencv_phase_unwrapping320.lib
opencv_photo320.lib
opencv_plot320.lib
opencv_reg320.lib
opencv_rgbd320.lib
opencv_saliency320.lib
opencv_shape320.lib
opencv_stereo320.lib
opencv_stitching320.lib
opencv_structured_light320.lib
opencv_superres320.lib
opencv_surface_matching320.lib
opencv_text320.lib
opencv_tracking320.lib
opencv_video320.lib
opencv_videoio320.lib
opencv_videostab320.lib
opencv_xfeatures2d320.lib
opencv_ximgproc320.lib
opencv_xobjdetect320.lib