霍夫变换检测直线
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pt2.x = cvRound(rho/a); pt2.y = 0;
cvLine(color_dst,pt1,pt2,CV_RGB(255,0,0),1,8);
lines = cvHoughLines2(dst,storage,CV_HOUGH_PROBABILISTIC,1,CV_PI/180,80,30,5); for (i=0;i<lines->total;i++) { CvPoint *line = (CvPoint *)cvGetSeqElem(lines,i); cvLine(color_dst,line[0],line[1],CV_RGB(255,0,0),1,CV_AA);
#include<cv.h> #include <highgui.h> #include <math.h>
Байду номын сангаас
int main(void) { IplImage *src = cvLoadImage("D:\\xgmiao\\image\\1.jpg",0); if (src) { IplImage *dst = cvCreateImage(cvGetSize(src),8,1); IplImage *color_dst = cvCreateImage(cvGetSize(src),8,3); CvMemStorage *storage = cvCreateMemStorage(); CvSeq *lines = 0; int i ; cvCanny(src,dst,50,200,3);
cvCvtColor(dst,color_dst,CV_GRAY2BGR); #if 0 lines = cvHoughLines2(dst,storage,CV_HOUGH_STANDARD,1,CV_PI/180,150,0,0);
for (i=0;i<lines->total;i++) { float *line = (float *)cvGetSeqElem(lines,i); float rho = line[0]; float theta = line[1]; CvPoint pt1,pt2; double a = cos(theta); double b = sin(theta); if (fabs(a)<0.001) { pt1.x = pt2.x = cvRound(rho); pt1.y = 0; pt2.y = color_dst->height; } else if (fabs(b)<0.001) { pt1.y = pt2.y = cvRound(rho); pt1.x = 0; pt2.x = color_dst->width; } else { pt1.x = 0; pt1.y = cvRound(rho/b);
cvNamedWindow("Source"); cvShowImage("Source",src);
cvNamedWindow("Hough"); cvShowImage("Hough",color_dst);
cvWaitKey(0);
cvReleaseImage(&src); cvReleaseImage(&dst); cvReleaseImage(&color_dst); cvReleaseMemStorage(&storage);
cvDestroyAllWindows();
return 1;
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pt2.x = cvRound(rho/a); pt2.y = 0;
cvLine(color_dst,pt1,pt2,CV_RGB(255,0,0),1,8);
lines = cvHoughLines2(dst,storage,CV_HOUGH_PROBABILISTIC,1,CV_PI/180,80,30,5); for (i=0;i<lines->total;i++) { CvPoint *line = (CvPoint *)cvGetSeqElem(lines,i); cvLine(color_dst,line[0],line[1],CV_RGB(255,0,0),1,CV_AA);
#include<cv.h> #include <highgui.h> #include <math.h>
Байду номын сангаас
int main(void) { IplImage *src = cvLoadImage("D:\\xgmiao\\image\\1.jpg",0); if (src) { IplImage *dst = cvCreateImage(cvGetSize(src),8,1); IplImage *color_dst = cvCreateImage(cvGetSize(src),8,3); CvMemStorage *storage = cvCreateMemStorage(); CvSeq *lines = 0; int i ; cvCanny(src,dst,50,200,3);
cvCvtColor(dst,color_dst,CV_GRAY2BGR); #if 0 lines = cvHoughLines2(dst,storage,CV_HOUGH_STANDARD,1,CV_PI/180,150,0,0);
for (i=0;i<lines->total;i++) { float *line = (float *)cvGetSeqElem(lines,i); float rho = line[0]; float theta = line[1]; CvPoint pt1,pt2; double a = cos(theta); double b = sin(theta); if (fabs(a)<0.001) { pt1.x = pt2.x = cvRound(rho); pt1.y = 0; pt2.y = color_dst->height; } else if (fabs(b)<0.001) { pt1.y = pt2.y = cvRound(rho); pt1.x = 0; pt2.x = color_dst->width; } else { pt1.x = 0; pt1.y = cvRound(rho/b);
cvNamedWindow("Source"); cvShowImage("Source",src);
cvNamedWindow("Hough"); cvShowImage("Hough",color_dst);
cvWaitKey(0);
cvReleaseImage(&src); cvReleaseImage(&dst); cvReleaseImage(&color_dst); cvReleaseMemStorage(&storage);
cvDestroyAllWindows();
return 1;
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