opencv图像canny和二值化化的轮廓提取，并求外接矩形，画圆等

#include "iostream" 
#include "highgui.h"
#include "cv.h"
#include "cxcore.h"
#include
#include "D:\Program Files\opencv\build\include\opencv2\core\core.hpp"
using namespace cv;
 CvBox2D  Box2D;
int main(int argc, char* argv[])
{  
IplImage *src=cvLoadImage("text.jpg",1);
///***************************************************
int data[16]=
 {
  0,0,0,0,
  0,0,1,0,     ///图像的腐蚀
  0,1,1,0,
  0,0,0,0
 };
IplConvKernel *Element= cvCreateStructuringElementEx(4,4,2,2,CV_SHAPE_RECT,data);;
cvErode(src,src,Element,2);
// ***********************************************/
IplImage *src_RGB=cvCreateImage(cvGetSize(src),8,3);
IplImage *ZeroImage=cvCreateImage(cvGetSize(src),8,3);
cvZero(ZeroImage);
src_RGB=cvCloneImage(src);   //copy Image
IplImage *src_gray=cvCreateImage(cvGetSize(src),8,1);
IplImage *Canny_Image=cvCreateImage(cvGetSize(src),8,1);
IplImage *Threshold=cvCreateImage(cvGetSize(src),8,1);
cvCvtColor(src,src_gray,CV_RGB2GRAY);
cvShowImage("GRAY",src_gray);//显示灰色图像


//转为二值化图像
cvThreshold(src_gray,Threshold,120,255,CV_THRESH_BINARY);


cvShowImage("Threshold",Threshold);
CvMemStorage *storage =cvCreateMemStorage(0);
CvSeq * Image_Seq;

//使用canny算法提取图像的轮廓
cvCanny(src_gray,Canny_Image,125,255,3);
//使用cvfindcontour函数提取轮廓
    cvFindContours(Canny_Image,storage,&Image_Seq,sizeof(CvContour),CV_RETR_CCOMP,CV_CHAIN_APPROX_NONE);


cvDrawContours(src_RGB,Image_Seq,CV_RGB(200,65,45),CV_RGB(100,165,45),2,2,8);
cvDrawContours(ZeroImage,Image_Seq,CV_RGB(200,65,45),CV_RGB(255,2555,255),2,2,8);


CvSeq * Cal_Contours=Image_Seq;
    CvPoint2D32f Array[4];
for(;Cal_Contours!=0;Cal_Contours=Cal_Contours->h_next )
{    //show  Angle to Image
 CvSeq* InterCon = Cal_Contours->v_next;
for(;InterCon!=0;InterCon=InterCon->h_next)
{
     Box2D=cvMinAreaRect2(Cal_Contours);


  CvBox2D FitBox;
 FitBox= cvMinAreaRect2(Cal_Contours);
//  cvFitEllipse2(Cal_Contours);
// printf("Cal_Contours of angle %f",Box2D.angle);
 CvBox2D ellipse = cvFitEllipse2(Cal_Contours);
 cvBoxPoints(FitBox,Array);
 cvEllipseBox(src_RGB,ellipse,CV_RGB(255,255,0)); //在图上画椭圆  
 printf("%f %f ",Array[0].x ,Array[0].y );
 printf("\n" );
 cvLine(ZeroImage,cvPoint(Array[0].x,Array[0].y),cvPoint(Array[1].x,Array[1].y),CV_RGB(114,45,255),2,8);
 cvLine(ZeroImage,cvPoint(Array[1].x,Array[1].y),cvPoint(Array[2].x,Array[2].y),CV_RGB(114,45,255),2,8);
 cvLine(ZeroImage,cvPoint(Array[2].x,Array[2].y),cvPoint(Array[3].x,Array[3].y),CV_RGB(114,45,255),2,8);
 cvLine(ZeroImage,cvPoint(Array[3].x,Array[3].y),cvPoint(Array[0].x,Array[0].y),CV_RGB(114,45,255),2,8);
 //在图上画圆
     //cvCircle(ZeroImage,cvPoint((int)Box2D.center.x,(int)Box2D.center.y) ,50,CV_RGB(45,89,56),2,8);
////draw RectAngle to Image
// CvRect rect= cvBoundingRect(Cal_Contours);
   // cvRectangle(ZeroImage,cvPoint(rect.x,rect.y),cvPoint(rect.x+rect.width ,rect.y+rect.width),CV_RGB(114,45,255),2,8);
}
}


//显示图像
cvNamedWindow("ZeroImage",0);
cvShowImage("ZeroImage",ZeroImage);

    cvShowImage("src",Canny_Image);

cvShowImage("src_RGB",src_RGB);
cvWaitKey();
return 0;

}

作为初学者，有不对的地方请见谅和指教