#include?“cv.h“
#include?“highgui.h“
#include?“cxcore.h“
#include?
#include?
#include?
#include?
using?namespace?std;


CvPoint?pt[4];
IplImage*?img?=?0;
IplImage*?img0?=?0;
const?char*?wndname?=?“Demo“;

const?char*?names[]?=?{?“che.jpg“?
????????????????“benze.jpg“
				?
				??0?};

void?FindContours（IplImage*?srcIplImage*src1）;
IplImage*cvGetSubImage（IplImage*imageCvRect?roi）;

int?main（int?argc?char**?argv）
{
????int?i;

????for（?i?=?0;?names[i]?!=?0;?i++?）
????{
????????img0?=?cvLoadImage（?names[i]?0?）;
????????if（?!img0?）ing
????????{
????????????printf（“Couldn‘t?load?%s/n“?names[i]?）;
????????????continue;
????????}
		img=cvCreateImage（cvSize（400300）81）;
		IplImage*?pyr=cvCreateImage（cvSize（img->width/2img->height/2）IPL_DEPTH_8U1）;
		cvResize（img0img）;
		cvNamedWindow（“input“1）;
		cvShowImage（“input“img）;
		cvSmooth（imgimgCV_GAUSSIAN）;
		


????????//img?=?cvCloneImage（?img0?）;
		IplImage*?imgS=cvCreateImage（cvGetSize（img）IPL_DEPTH_16S1）;
		IplImage*?imgTh=cvCreateImage（cvGetSize（img）IPL_DEPTH_8U1）;
		IplImage*?temp=cvCreateImage（cvGetSize（img）IPL_DEPTH_8U1）;
		

????????cvSobel（imgimgS203）;
????????cvNormalize（imgSimgTh2550CV_MINMAX）;

????????cvNamedWindow（?wndname1）;

		cvNamedWindow（“Sobel“1）;
		cvShowImage（“Sobel“imgTh）;


		cvThreshold（?imgTh?imgTh?100?255?CV_THRESH_BINARY?）;
		
		for?（int?k=0;?kheight;?k++）

			for（int?j=0;?jwidth;?j++）

			{

				imgTh->imageData[k*img->widthStep+j]?=?255?-?imgTh->imageData[k*img->widthStep+j];

			}
			
		cvNamedWindow（“Th“1）;
		cvShowImage（“Th“imgTh）;
		IplConvKernel*?K=cvCreateStructuringElementEx（3110CV_SHAPE_RECT）;
		IplConvKernel*?K1=cvCreateStructuringEle