From 612addd04eb9d0c60c1be0c5b0cf5de33e0af9c8 Mon Sep 17 00:00:00 2001
From: Gary Bradski <no@email>
Date: Sat, 4 Dec 2010 08:24:25 +0000
Subject: [PATCH] revamped

---
 samples/cpp/laplace.cpp | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/samples/cpp/laplace.cpp b/samples/cpp/laplace.cpp
index 09be6e0dd5..b8fcf7b9ad 100644
--- a/samples/cpp/laplace.cpp
+++ b/samples/cpp/laplace.cpp
@@ -7,12 +7,22 @@
 using namespace cv;
 using namespace std;
 
+void help()
+{
+	cout <<
+			"\nThis program demonstrates Laplace point/edge detection using OpenCV function Laplacian()\n"
+			"It captures from the camera of your choice: 0, 1, ... default 0\n"
+			"Call:\n"
+			"./laplace [camera #, default 0]\n" << endl;
+}
+
 int sigma = 3;
 int smoothType = CV_GAUSSIAN;
 
 int main( int argc, char** argv )
 {
     VideoCapture cap;
+    help();
 
     if( argc == 1 || (argc == 2 && strlen(argv[1]) == 1 && isdigit(argv[1][0])))
         cap.open(argc == 2 ? argv[1][0] - '0' : 0);