Add a license header

diff --git a/perspective-transform/opencv-perspective-transform.c b/perspective-transform/opencv-perspective-transform.c
index 672795a..55d8c24 100644 (file)
--- a/perspective-transform/opencv-perspective-transform.c
+++ b/perspective-transform/opencv-perspective-transform.c
@@ -1,3 +1,22 @@
+/* 
+ * opencv-perspective-transform - Example program for cvWarpPerspective()
+ *
+ * Copyright (C) 2013  Antonio Ospite <ospite@studenti.unina.it>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
 #include <stdio.h>
 #include <errno.h>
 #include <opencv2/core/core_c.h>