基于OpenCV的车牌识别c++

基于视频的车牌识别，通过OpenCV视觉库对信息进行处理达到目的

#include 
#include “opencv2/imgproc/imgproc.hpp“
#include “opencv2/highgui/highgui.hpp“
#include 
#include 
#include “utils.h“

#define USE_VIDEO 1

#undef MIN
#undef MAX
#define MAX（ab） （（a）<（b）?（b）:（a））
#define MIN（ab） （（a）>（b）?（b）:（a））

void crop（IplImage* src  IplImage* dest CvRect rect） {
    cvSetImageROI（src rect）; 
    cvCopy（src dest）; 
    cvResetImageROI（src）; 
}

struct Lane {
	Lane（）{}
	Lane（CvPoint a CvPoint b float angle float kl float bl）: p0（a）p1（b）angle（angle）
		votes（0）visited（false）found（false）k（kl）b（bl） { }

	CvPoint p0 p1;
	int votes;
	bool visited found;
	float angle k b;
};

struct Status {
	Status（）:reset（true）lost（0）{}
	ExpMovingAverage k b;
	bool reset;
	int lost;
};

struct Vehicle {
	CvPoint bmin bmax;
	int symmetryX;
	bool valid;
	unsigned int lastUpdate;
};

struct VehicleSample {
	CvPoint center;
	float radi;
	unsigned int frameDetected;
	int vehicleIndex;
};

#define GREEN CV_RGB（02550）
#define RED CV_RGB（25500）
#define BLUE CV_RGB（2550255）
#define PURPLE CV_RGB（2550255）

Status laneR laneL;
std::vector vehicles;
std::vector samples;

enum{
    SCAN_STEP = 5			  // in pixels
	LINE_REJECT_DEGREES = 10 // in degrees
    BW_TRESHOLD = 250		  // edge response strength to recognize for ‘WHITE‘
    BORDERX = 10			  // px skip this much from left & right borders
	MAX_RESPONSE_DIST = 5	  // px
	
	CANNY_MIN_TRESHOLD = 1	  // edge detector minimum hysteresis threshold
	CANNY_MAX_TRESHOLD = 100 // edge detector maximum hysteresis threshold

	HOUGH_TRESHOLD = 50		// line approval vote threshold
	HOUGH_MIN_LINE_LENGTH = 50	// remove lines shorter than this treshold
	HOUGH_MAX_LINE_GAP = 100   // join lines to one with smaller than this gaps

	CAR_DETECT_LINES = 4    // minimum lines for a region to pass validation as a ‘CAR‘
	CAR_H_LINE_LENGTH = 10  // minimum horizontal line length from car body in px

	MAX_VEHICLE_SAMPLES = 30      // max vehicle detection sampling history
	CAR_DETECT_POSITIVE_SAMPLES = MAX_VEHICLE_SAMPLES-2 // probability positive matches for valid car
	MAX_VEHICLE_NO_UPDATE_FREQ = 15 // remove car after this much no update frames
};

#define K_VARY_FACTOR 0.2f
#define B_VARY_FACTOR 20
#define MAX_LOST_frameS 30

void FindResponses（IplImage *img int startX int endX int y std::vector& list）
{
    // scans for single response: /^\_

	const int row = y * img->width * img->nChannels;
	unsigned char* ptr = （unsigned char*）img->imageData;

    int step = （endX < startX） ? -1: 1;
    int range = （endX > startX） ? endX-startX+1 : startX-endX+1;

    for（int x = startX; range>0; x += step range--）
    {
        if（ptr[row + x] <= BW_TRESHOLD） continue; // skip black: loop until white pixels show up

        // first response found
        int idx = x + step;

        // skip same response（white）

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     目录           0  2018-04-20 20:03  opencv-lane-vehicle-track-master\
     目录           0  2018-04-20 20:03  opencv-lane-vehicle-track-master\Debug\
     文件       12676  2018-04-06 21:24  opencv-lane-vehicle-track-master\Debug\CL.read.1.tlog
     文件         420  2018-04-06 21:24  opencv-lane-vehicle-track-master\Debug\CL.write.1.tlog
     文件         706  2018-04-06 21:24  opencv-lane-vehicle-track-master\Debug\cl.command.1.tlog
     文件           2  2018-04-06 21:24  opencv-lane-vehicle-track-master\Debug\flowdemo.exe.embed.manifest
     文件          68  2018-04-06 21:24  opencv-lane-vehicle-track-master\Debug\flowdemo.exe.embed.manifest.res
     文件          82  2018-04-07 09:44  opencv-lane-vehicle-track-master\Debug\flowdemo.lastbuildstate
     文件        2658  2018-04-07 09:44  opencv-lane-vehicle-track-master\Debug\flowdemo.log
     文件           0  2018-04-07 09:44  opencv-lane-vehicle-track-master\Debug\flowdemo.unsuccessfulbuild
     文件           0  2018-04-06 21:24  opencv-lane-vehicle-track-master\Debug\flowdemo.write.1.tlog
     文件         206  2018-04-06 21:24  opencv-lane-vehicle-track-master\Debug\flowdemo_manifest.rc
     文件           2  2018-04-07 09:44  opencv-lane-vehicle-track-master\Debug\link.command.1.tlog
     文件           2  2018-04-07 09:44  opencv-lane-vehicle-track-master\Debug\link.read.1.tlog
     文件           2  2018-04-07 09:44  opencv-lane-vehicle-track-master\Debug\link.write.1.tlog
     文件      460482  2018-04-06 21:24  opencv-lane-vehicle-track-master\Debug\main.obj
     文件         594  2018-04-06 21:24  opencv-lane-vehicle-track-master\Debug\rc.command.1.tlog
     文件         350  2018-04-06 21:24  opencv-lane-vehicle-track-master\Debug\rc.read.1.tlog
     文件         358  2018-04-06 21:24  opencv-lane-vehicle-track-master\Debug\rc.write.1.tlog
     文件      478208  2018-04-06 21:24  opencv-lane-vehicle-track-master\Debug\vc100.idb
     文件     1003520  2018-04-06 21:24  opencv-lane-vehicle-track-master\Debug\vc100.pdb
     目录           0  2018-04-20 20:03  opencv-lane-vehicle-track-master\bin\
     目录           0  2018-04-20 20:03  opencv-lane-vehicle-track-master\bin\haar\
     文件        3311  2014-04-06 03:09  opencv-lane-vehicle-track-master\bin\haar\MIT cars128x128.txt
     文件         353  2014-04-06 03:09  opencv-lane-vehicle-track-master\bin\haar\README
     文件      118803  2014-04-06 03:09  opencv-lane-vehicle-track-master\bin\haar\cars3.xml
     文件     2000896  2014-04-06 03:09  opencv-lane-vehicle-track-master\bin\opencv_core242.dll
     文件      668672  2014-04-06 03:09  opencv-lane-vehicle-track-master\bin\opencv_features2d242.dll
     文件     9156997  2014-04-06 03:09  opencv-lane-vehicle-track-master\bin\opencv_ffmpeg242.dll
     文件      460800  2014-04-06 03:09  opencv-lane-vehicle-track-master\bin\opencv_flann242.dll
     文件      385536  2014-04-06 03:09  opencv-lane-vehicle-track-master\bin\opencv_gpu242.dll
............此处省略26个文件信息