84 lines
3.0 KiB
C
84 lines
3.0 KiB
C
#include <opencv2/imgproc/imgproc.hpp>
|
|
#include <opencv2/highgui/highgui.hpp>
|
|
|
|
#define w 500
|
|
int levels = 3;
|
|
CvSeq* contours = 0;
|
|
|
|
void on_trackbar(int pos)
|
|
{
|
|
IplImage* cnt_img = cvCreateImage( cvSize(w,w), 8, 3 );
|
|
CvSeq* _contours = contours;
|
|
int _levels = levels - 3;
|
|
if( _levels <= 0 ) // get to the nearest face to make it look more funny
|
|
_contours = _contours->h_next->h_next->h_next;
|
|
cvZero( cnt_img );
|
|
cvDrawContours( cnt_img, _contours, CV_RGB(255,0,0), CV_RGB(0,255,0), _levels, 3, CV_AA, cvPoint(0,0) );
|
|
cvShowImage( "contours", cnt_img );
|
|
cvReleaseImage( &cnt_img );
|
|
}
|
|
|
|
int main( int argc, char** argv )
|
|
{
|
|
int i, j;
|
|
CvMemStorage* storage = cvCreateMemStorage(0);
|
|
IplImage* img = cvCreateImage( cvSize(w,w), 8, 1 );
|
|
|
|
cvZero( img );
|
|
|
|
for( i=0; i < 6; i++ )
|
|
{
|
|
int dx = (i%2)*250 - 30;
|
|
int dy = (i/2)*150;
|
|
CvScalar white = cvRealScalar(255);
|
|
CvScalar black = cvRealScalar(0);
|
|
|
|
if( i == 0 )
|
|
{
|
|
for( j = 0; j <= 10; j++ )
|
|
{
|
|
double angle = (j+5)*CV_PI/21;
|
|
cvLine(img, cvPoint(cvRound(dx+100+j*10-80*cos(angle)),
|
|
cvRound(dy+100-90*sin(angle))),
|
|
cvPoint(cvRound(dx+100+j*10-30*cos(angle)),
|
|
cvRound(dy+100-30*sin(angle))), white, 1, 8, 0);
|
|
}
|
|
}
|
|
|
|
cvEllipse( img, cvPoint(dx+150, dy+100), cvSize(100,70), 0, 0, 360, white, -1, 8, 0 );
|
|
cvEllipse( img, cvPoint(dx+115, dy+70), cvSize(30,20), 0, 0, 360, black, -1, 8, 0 );
|
|
cvEllipse( img, cvPoint(dx+185, dy+70), cvSize(30,20), 0, 0, 360, black, -1, 8, 0 );
|
|
cvEllipse( img, cvPoint(dx+115, dy+70), cvSize(15,15), 0, 0, 360, white, -1, 8, 0 );
|
|
cvEllipse( img, cvPoint(dx+185, dy+70), cvSize(15,15), 0, 0, 360, white, -1, 8, 0 );
|
|
cvEllipse( img, cvPoint(dx+115, dy+70), cvSize(5,5), 0, 0, 360, black, -1, 8, 0 );
|
|
cvEllipse( img, cvPoint(dx+185, dy+70), cvSize(5,5), 0, 0, 360, black, -1, 8, 0 );
|
|
cvEllipse( img, cvPoint(dx+150, dy+100), cvSize(10,5), 0, 0, 360, black, -1, 8, 0 );
|
|
cvEllipse( img, cvPoint(dx+150, dy+150), cvSize(40,10), 0, 0, 360, black, -1, 8, 0 );
|
|
cvEllipse( img, cvPoint(dx+27, dy+100), cvSize(20,35), 0, 0, 360, white, -1, 8, 0 );
|
|
cvEllipse( img, cvPoint(dx+273, dy+100), cvSize(20,35), 0, 0, 360, white, -1, 8, 0 );
|
|
}
|
|
|
|
cvNamedWindow( "image", 1 );
|
|
cvShowImage( "image", img );
|
|
|
|
cvFindContours( img, storage, &contours, sizeof(CvContour),
|
|
CV_RETR_TREE, CV_CHAIN_APPROX_SIMPLE, cvPoint(0,0) );
|
|
|
|
// comment this out if you do not want approximation
|
|
contours = cvApproxPoly( contours, sizeof(CvContour), storage, CV_POLY_APPROX_DP, 3, 1 );
|
|
|
|
cvNamedWindow( "contours", 1 );
|
|
cvCreateTrackbar( "levels+3", "contours", &levels, 7, on_trackbar );
|
|
|
|
on_trackbar(0);
|
|
cvWaitKey(0);
|
|
cvReleaseMemStorage( &storage );
|
|
cvReleaseImage( &img );
|
|
|
|
return 0;
|
|
}
|
|
|
|
#ifdef _EiC
|
|
main(1,"");
|
|
#endif
|