Opencv进行直线检测，C++编程，检测完直线后想在原图上标注。

#include "stdafx.h"
#include <opencv2/core/core.hpp>
#include <opencv2/opencv.hpp>
#include <opencv2/imgproc/imgproc.hpp>
#include <opencv2/highgui/highgui.hpp>
#include <iostream>
using namespace std;
int main (int argc, char **argv)
{
const char *pstrWindowsSrcTitle = "initial";
const char *pstrWindowsLineName = "hough";
IplImage *pSrcImage = cvLoadImage("f:\\A.jpg", CV_LOAD_IMAGE_UNCHANGED);
IplImage *pGrayImage = cvCreateImage(cvGetSize(pSrcImage), IPL_DEPTH_8U, 1);
cvCvtColor(pSrcImage, pGrayImage, CV_BGR2GRAY);
IplImage *pCannyImage = cvCreateImage(cvGetSize(pSrcImage), IPL_DEPTH_8U, 1);
cvCanny(pGrayImage, pCannyImage, 30, 90);
CvMemStorage *pcvMStorage = cvCreateMemStorage();
double fRho = 1;
double fTheta = CV_PI / 180;
int nMaxLineNumber = 50;
double fMinLineLen = 50;
double fMinLineGap = 10;
CvSeq *pcvSeqLines = cvHoughLines2(pCannyImage, pcvMStorage, CV_HOUGH_PROBABILISTIC, fRho, fTheta, nMaxLineNumber, fMinLineLen, fMinLineGap);
IplImage *pColorImage = cvCreateImage(cvGetSize(pSrcImage), IPL_DEPTH_8U, 3);
cvCvtColor(pCannyImage, pColorImage, CV_GRAY2BGR);
int i;
for(i = 0; i < pcvSeqLines->total; i++)
{
CvPoint* line = (CvPoint*)cvGetSeqElem(pcvSeqLines, i);
cvLine(pColorImage, line[0], line[1], CV_RGB(255,0,0), 3);
}
cvNamedWindow(pstrWindowsSrcTitle, CV_WINDOW_AUTOSIZE);
cvShowImage(pstrWindowsSrcTitle, pSrcImage);
cvNamedWindow(pstrWindowsLineName, CV_WINDOW_AUTOSIZE);
cvShowImage(pstrWindowsLineName, pColorImage);
cvWaitKey(0);
cvReleaseMemStorage(&pcvMStorage);
cvDestroyWindow(pstrWindowsSrcTitle);
cvDestroyWindow(pstrWindowsLineName);
cvReleaseImage(&pSrcImage);
cvReleaseImage(&pGrayImage);
cvReleaseImage(&pCannyImage);
cvReleaseImage(&pColorImage);
return 0;
}
这是编写的代码，怎么修改，可以在原图上标注直线。（第一张是原图，第二张是直线检测后标注在边缘的图，想标注在原图上，怎么改程序？急求啊！！！