cvSetData測試

IplImage *image = cvLoadImage("D:\\original(W).bmp" ,1);
IplImage *rere =new IplImage;
cvInitImageHeader(rere, cvSize( image->width,image->height), 8, 3,IPL_ORIGIN_BL, 4);
cvSetData(rere, image->imageData, image->widthStep );

int cannyV1 = 150;
int cannyV2 = 50;
IplImage *image_Gray =cvCreateImage(cvSize(image->width , image->height) ,image->depth ,1);
IplImage *image_Canny = cvCreateImage(cvSize(image->width , image->height) ,image->depth ,1);
CvMemStorage *storage = cvCreateMemStorage(0);
CvSeq *seq =0;

cvCvtColor(image , image_Gray ,CV_BGR2GRAY);
cvCanny(image_Gray ,image_Canny , cannyV1 ,cannyV2 ,3);

seq = cvHoughLines2(image_Canny , storage , CV_HOUGH_PROBABILISTIC , 1 ,  CV_PI/180, 100, 20, 10 );
for(int i=0 ;i< seq->total ; i++)
{
CvPoint* line = (CvPoint*)cvGetSeqElem(seq,i);
cvLine(rere , line[0] ,line[1] , CV_RGB(255, 0, 0) ,2 ,8 ,0);
}
cvShowImage("A" ,image);
cvShowImage("B" ,rere);
cvWaitKey();
cvReleaseImage(&image);
        cvReleaseImage(&rere);
}

測試後，圖片會上下顛倒，且在其一張做處理，另一張也會受影響