From 4d5149e1ae5e7d9d5dcd84cefe3b9953965efae1 Mon Sep 17 00:00:00 2001
From: Gary Bradski <no@email>
Date: Wed, 1 Dec 2010 08:28:00 +0000
Subject: [PATCH] created docs

---
 samples/c/contours.c | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/samples/c/contours.c b/samples/c/contours.c
index 4af2d2a0c2..2fc8918488 100644
--- a/samples/c/contours.c
+++ b/samples/c/contours.c
@@ -1,5 +1,16 @@
 #include <opencv2/imgproc/imgproc.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
 int levels = 3;
@@ -18,12 +29,14 @@ void on_trackbar(int pos)
     cvReleaseImage( &cnt_img );
 }
 
+
+
 int main( int argc, char** argv )
 {
     int i, j;
     CvMemStorage* storage = cvCreateMemStorage(0);
     IplImage* img = cvCreateImage( cvSize(w,w), 8, 1 );
-
+    help();
     cvZero( img );
 
     for( i=0; i < 6; i++ )