#include“caliberate.h“
IplImage*?avgImage;	//Road?Image
uchar*?avgImageData;?//data?of?road?image
float?table[WIDTH_SMALL][HEIGHT_SMALL][NCHANNELS];
bool?isFixed[WIDTH_SMALL][HEIGHT_SMALL];
IplImage?*?polygonImg;
int?polyPts[4][2];?//four?points?of?polygon
CvPoint?pts[4];?//four?points?of?polygon
int?counter=0?;
double?polyArea?=?0;
bool?firstTime?=?true;
void?my_mouse_callback（int?event?int?x?int?y?int?flags?void*?param?）
{
	if（counter==4）	counter=0;
	switch（?event?）?
	{
		case?CV_EVENT_LBUTTONDOWN:?
		{
			polyPts[counter][0]?=?x?;?polyPts[counter][1]?=?y;
			cout<			if（!firstTime）
			{
				int?prevCounter?=?（counter==0?3:counter-1）;
				cvLine（avgImage?cvPoint（polyPts[prevCounter][0]?polyPts[prevCounter][1]）?cvPoint（polyPts[counter][0]?polyPts[counter][1]）?CV_RGB（25500）1CV_AA）;
				cvShowImage（“photo_road“?avgImage）;
			}
			firstTime?=?false;
		}
		break;
		case?CV_EVENT_LBUTTONUP:?
		{
			++counter;
		}
		break;?
	}
}
void?calibPolygon（void）
{
	//while?caliberating?polygon?click?on?four?points?to?select?polygon.
	//If?any?pixel?is?chosen?wrong?keep?clicking?circularly?clockwise?to?update?polygon?points
	polygonImg	?=?cvCreateImage（cvSize（WIDTH_SMALLHEIGHT_SMALL）IPL_DEPTH_8U1）;	cvZero（polygonImg）;	//blackout?area?out?of?polygon
	cvShowImage（“photo_road“?avgImage）;
	cvSetMouseCallback（“photo_road“my_mouse_callback（void*）?0）;
	cvWaitKey（0）;

	pts[0]?=?cvPoint（?polyPts[0][0]?polyPts[0][1]?）;
	pts[1]?=?cvPoint（?polyPts[1][0]?polyPts[1][1]）;
	pts[2]?=?cvPoint（?polyPts[2][0]?polyPts[2][1]??）;
	pts[3]?=?cvPoint（?polyPts[3][0]?polyPts[3][1]）;
	cvFillConvexPoly（?polygonImg?pts?4?cvScalar（?255?255?255?）?4）;
	float?sabcde;
	a?=?（double）pow（（double）（pts[0].x-pts[1].x）*（pts[0].x-pts[1].x）+（pts[0].y-pts[1].y）*（pts[0].y-pts[1].y）.5）;
	b?=?（double）pow（（double）（pts[1].x-pts[2].x）*（pts[1].x-pts[2].x）+（pts[1].y-pts[2].y）*（pts[1].y-pts[2].y）.5）;
	c?=?（double）pow（（double）（pts[0].x-pts[2].x）*（pts[0].x-pts[2].x）+（pts[0].y-pts[2].y）*（pts[0].y-pts[2].y）.5）;
	d?=?（double）pow（（double）（pts[2].x-pts[3].x）*（pts[2].x-pts[3].x）+（pts[2].y-pts[3].y）*（pts[2].y-pts[3].y）.5）;
	e?=?（double）pow（（double）（pts[3].x-pts[0].x）*（pts[3].x-pts[0].x）+（pts[3].y-pts[0].y）*（pts[3].y-pts[0].y）.5）;
	s?=?（a+b+c）/2;
	polyArea+=?fabs（sqrt（s*（s-a）*（s-b）*（s-c）））;
	s?=?（c+d+e）/2;
	polyArea+=?fabs（（double）pow（（double）s*（s-c）*（s-d）*（s-e）.5））;
	cvDestroyWindow（“photo_road“）;
}

void?calibIntensity（void）
{
	//Find?average?Image?Intensity?（just?for?information）
	float?intensity?=?0;
	int?temp;
	for（int?i=0;?i	{
		for（int?j=0;?j		{
			temp?=?i*WIDTH_STEP_SMALL+j*NCHANNELS;
			intensity?+=?（?frameData[temp]?+?frameData[temp+1]?+?frameData[temp+2]?）/3;
		}
	}
	intensity/=?WIDTH_SMALL?*?HEIGHT_SMALL;
	cout<<“Intensity?=?“<}

IplImage*?findRoadImage（void）
{	
	avgImage?=?cvCreateImage（?cvSize（WIDTH_SMALL?HEIGHT_SMALL）?8?3）;	//averaged?over?100?gray?image?fr

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件????????1661??2014-10-18?20:41??Realtime-Traffic-Detection-master\README.md
?????文件????????5510??2014-10-18?20:41??Realtime-Traffic-Detection-master\caliberate.cpp
?????文件?????????936??2014-10-18?20:41??Realtime-Traffic-Detection-master\caliberate.h
?????文件???????10238??2018-04-12?16:39??Realtime-Traffic-Detection-master\main.cpp
?????目錄???????????0??2014-10-18?20:41??Realtime-Traffic-Detection-master\