//??定義控制臺應用程序的入口點。
//


#include?“opencv2/objdetect/objdetect.hpp“
#include?“opencv2/highgui/highgui.hpp“
#include?“opencv2/imgproc/imgproc.hpp“
#include?“opencv2/ml/ml.hpp“

#include?
#include?
using?namespace?std;
using?namespace?cv;

void?detectAndDraw（Mat&?img?CascadeClassifier&?cascade?double?scale）
{
	double?t?=?0;
	vector?car;
	const?static?Scalar?colors[]?=?{?CV_RGB（0?0?255）};

	Mat?gray?smallImg（cvRound（img.rows?/?scale）?cvRound（img.cols?/?scale）?CV_8UC1）;//將圖片縮小，加快檢測速度

	cvtColor（img?gray?CV_BGR2GRAY）;//因為用的是類haar特征，所以都是基于灰度圖像的，這里要轉換成灰度圖像
	resize（gray?smallImg?smallImg.size（）?0?0?INTER_LINEAR）;//將尺寸縮小到1/scale用線性插值
	equalizeHist（smallImg?smallImg）;//直方圖均衡

	t?=?（double）cvGetTickCount（）;//用來計算算法執行時間

	cascade.detectMultiScale（smallImgcar
		1.1?2?0
		//|CV_HAAR_FIND_BIGGEST_object
		//|CV_HAAR_DO_ROUGH_SEARCH
		|?CV_HAAR_SCALE_IMAGE
		
		Size（30?30））;

	t?=?（double）cvGetTickCount（）?-?t;//相減為算法執行的時間
	printf（“detection?time?=?%g?ms\n“?t?/?（（double）cvGetTickFrequency（）*1000.））;
	for?（vector::const_iterator?r?=car.begin（）;?r?!=?car.end（）;?r++）
	{
		Mat?smallImgROI;
		vector?nestedobjects;
		Point?center;
		Scalar?color?=?colors[0];
		int?radius;
		center.x?=?cvRound（（r->x?+?r->width*0.5）*scale）;//還原成原來的大小
		center.y?=?cvRound（（r->y?+?r->height*0.5）*scale）;
		radius?=?cvRound（（r->width?+?r->height）*0.25*scale）;
		circle（img?center?radius?color?3?8?0）;
		smallImgROI?=?smallImg（*r）;
	}
	cv::imshow（“result“?img）;
}
int?main（int?argc?const?char**?argv）
{
	VideoCapture?capture（“4.flv“）;

	//【2】循環顯示每一幀
	while?（1）
	{
		Mat?frame;//定義一個Mat變量，用于存儲每一幀的圖像
		capture?>>?frame;??//讀取當前幀
		imshow（“讀取視頻“?frame）;??//顯示當前幀
		waitKey（1）;??//延時30ms

		CascadeClassifier?cascade;//創建級聯分類器對象
		double?scale?=?3.0;
		if?（!cascade.load（“model.xml“））//從指定的文件目錄中加載級聯分類器
		{
			cerr?<			return?0;
		}

		if?（!frame.empty（））//讀取圖片數據不能為空
		{
			detectAndDraw（frame?cascade?scale）;
			//waitKey（0）;
		}

		
	}return?0;
}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2017-03-30?14:59??車輛檢測\
?????目錄???????????0??2017-03-30?14:59??車輛檢測\ConsoleApplication13\
?????文件?????1061211??2017-03-30?09:08??車輛檢測\ConsoleApplication13\1?（1）.png
?????文件??????941345??2017-03-30?09:08??車輛檢測\ConsoleApplication13\1?（2）.png
?????文件??????834930??2017-03-30?09:09??車輛檢測\ConsoleApplication13\1?（3）.png
?????文件??????760951??2017-03-30?09:10??車輛檢測\ConsoleApplication13\1?（4）.png
?????文件??????656273??2017-03-30?09:10??車輛檢測\ConsoleApplication13\1?（5）.png
?????文件??????609102??2017-03-30?09:08??車輛檢測\ConsoleApplication13\1?（6）.png
?????文件??????893359??2017-03-30?09:10??車輛檢測\ConsoleApplication13\1?（7）.png
?????文件?????1127770??2017-03-30?09:09??車輛檢測\ConsoleApplication13\1?（8）.png
?????文件?????1022765??2017-03-30?09:07??車輛檢測\ConsoleApplication13\1?（9）.png
?????文件???????36918??2013-07-31?15:24??車輛檢測\ConsoleApplication13\1.BMP
?????文件??????749600??2017-03-29?18:44??車輛檢測\ConsoleApplication13\1.png
?????文件??????747223??2017-03-29?18:46??車輛檢測\ConsoleApplication13\2.png
?????文件?????2788640??2017-03-16?15:50??車輛檢測\ConsoleApplication13\4.flv
?????文件????????7301??2017-03-29?18:40??車輛檢測\ConsoleApplication13\ConsoleApplication13.vcxproj
?????文件?????????944??2017-03-29?18:40??車輛檢測\ConsoleApplication13\ConsoleApplication13.vcxproj.filters
?????文件??????308101??2017-03-29?18:43??車輛檢測\ConsoleApplication13\model.xml
?????文件??????118803??2016-03-17?03:15??車輛檢測\ConsoleApplication13\model1.xml
?????目錄???????????0??2017-03-30?14:57??車輛檢測\ConsoleApplication13\x64\
?????目錄???????????0??2017-03-30?14:58??車輛檢測\ConsoleApplication13\x64\Debug\
?????目錄???????????0??2017-03-30?14:58??車輛檢測\ConsoleApplication13\x64\Debug\ConsoleA.85F7FFFD.tlog\
?????文件???????33780??2017-03-30?14:58??車輛檢測\ConsoleApplication13\x64\Debug\ConsoleA.85F7FFFD.tlog\CL.read.1.tlog
?????文件????????1262??2017-03-30?14:58??車輛檢測\ConsoleApplication13\x64\Debug\ConsoleA.85F7FFFD.tlog\CL.write.1.tlog
?????文件?????????165??2017-03-30?14:58??車輛檢測\ConsoleApplication13\x64\Debug\ConsoleA.85F7FFFD.tlog\ConsoleApplication13.lastbuildstate
?????文件????????2202??2017-03-30?14:58??車輛檢測\ConsoleApplication13\x64\Debug\ConsoleA.85F7FFFD.tlog\cl.command.1.tlog
?????文件????????4444??2017-03-30?14:58??車輛檢測\ConsoleApplication13\x64\Debug\ConsoleA.85F7FFFD.tlog\link.command.1.tlog
?????文件????????5608??2017-03-30?14:58??車輛檢測\ConsoleApplication13\x64\Debug\ConsoleA.85F7FFFD.tlog\link.read.1.tlog
?????文件????????1246??2017-03-30?14:58??車輛檢測\ConsoleApplication13\x64\Debug\ConsoleA.85F7FFFD.tlog\link.write.1.tlog
?????文件????????2181??2017-03-30?14:58??車輛檢測\ConsoleApplication13\x64\Debug\ConsoleApplication13.log
?????文件??????617472??2017-03-30?14:58??車輛檢測\ConsoleApplication13\x64\Debug\vc120.idb
............此處省略11個文件信息