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This commit is contained in:
Gary Bradski 2010-12-01 08:28:00 +00:00
parent 57f7678db1
commit 4d5149e1ae
1 changed files with 14 additions and 1 deletions
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15
samples/c/contours.c
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@ -1,5 +1,16 @@
#include <opencv2/imgproc/imgproc.hpp> #include <opencv2/imgproc/imgproc.hpp>
#include <opencv2/highgui/highgui.hpp> #include <opencv2/highgui/highgui.hpp>
#include <stdio.h>
void help()
{
printf("\nThis program creates an image to demonstrate the use of the \"c\" contour\n"
"functions: cvFindContours() and cvApproxPoly() along with the storage\n"
"functions cvCreateMemStorage() and cvDrawContours().\n"
"It also shows the use of a trackbar to control contour retrieval.\n"
"\n"
"Call:\n"
"./contours\n");
}
#define w 500 #define w 500
int levels = 3; int levels = 3;
@ -18,12 +29,14 @@ void on_trackbar(int pos)
cvReleaseImage( &cnt_img ); cvReleaseImage( &cnt_img );
} }
int main( int argc, char** argv ) int main( int argc, char** argv )
{ {
int i, j; int i, j;
CvMemStorage* storage = cvCreateMemStorage(0); CvMemStorage* storage = cvCreateMemStorage(0);
IplImage* img = cvCreateImage( cvSize(w,w), 8, 1 ); IplImage* img = cvCreateImage( cvSize(w,w), 8, 1 );
help();
cvZero( img ); cvZero( img );
for( i=0; i < 6; i++ ) for( i=0; i < 6; i++ )