mirror of
https://github.com/opencv/opencv.git
synced 2024-11-26 12:10:49 +08:00
58 lines
1.6 KiB
C
58 lines
1.6 KiB
C
#include "opencv2/highgui/highgui.hpp"
|
|
#include "opencv2/imgproc/imgproc.hpp"
|
|
|
|
int main(int argc, char** argv)
|
|
{
|
|
const char* filename = argc >= 2 ? argv[1] : "pic1.png";
|
|
IplImage* src = cvLoadImage( filename, 0 );
|
|
IplImage* dst;
|
|
IplImage* color_dst;
|
|
CvMemStorage* storage = cvCreateMemStorage(0);
|
|
CvSeq* lines = 0;
|
|
int i;
|
|
|
|
if( !src )
|
|
return -1;
|
|
|
|
dst = cvCreateImage( cvGetSize(src), 8, 1 );
|
|
color_dst = cvCreateImage( cvGetSize(src), 8, 3 );
|
|
|
|
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, 100, 0, 0 );
|
|
|
|
for( i = 0; i < MIN(lines->total,100); i++ )
|
|
{
|
|
float* line = (float*)cvGetSeqElem(lines,i);
|
|
float rho = line[0];
|
|
float theta = line[1];
|
|
CvPoint pt1, pt2;
|
|
double a = cos(theta), b = sin(theta);
|
|
double x0 = a*rho, y0 = b*rho;
|
|
pt1.x = cvRound(x0 + 1000*(-b));
|
|
pt1.y = cvRound(y0 + 1000*(a));
|
|
pt2.x = cvRound(x0 - 1000*(-b));
|
|
pt2.y = cvRound(y0 - 1000*(a));
|
|
cvLine( color_dst, pt1, pt2, CV_RGB(255,0,0), 3, CV_AA, 0 );
|
|
}
|
|
#else
|
|
lines = cvHoughLines2( dst, storage, CV_HOUGH_PROBABILISTIC, 1, CV_PI/180, 50, 50, 10 );
|
|
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), 3, CV_AA, 0 );
|
|
}
|
|
#endif
|
|
cvNamedWindow( "Source", 1 );
|
|
cvShowImage( "Source", src );
|
|
|
|
cvNamedWindow( "Hough", 1 );
|
|
cvShowImage( "Hough", color_dst );
|
|
|
|
cvWaitKey(0);
|
|
|
|
return 0;
|
|
}
|
|
|