From 1f95ef57873df1b7a8e1c58f3701ed24d54de2bb Mon Sep 17 00:00:00 2001
From: Vanilla Hsu <vanilla@fatpipi.com>
Date: Mon, 29 Dec 2014 20:13:47 +0800
Subject: [PATCH] add Crop() sample code.

---
 samples/crop.go | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)
 create mode 100644 samples/crop.go

diff --git a/samples/crop.go b/samples/crop.go
new file mode 100644
index 0000000..62a1849
--- /dev/null
+++ b/samples/crop.go
@@ -0,0 +1,29 @@
+package main
+
+import (
+	"os"
+	"path"
+	"runtime"
+
+	opencv "github.com/vanillahsu/go-opencv/opencv"
+)
+
+func main() {
+	_, currentfile, _, _ := runtime.Caller(0)
+	filename := path.Join(path.Dir(currentfile), "../images/lena.jpg")
+	if len(os.Args) == 2 {
+		filename = os.Args[1]
+	}
+
+	image := opencv.LoadImage(filename)
+	if image == nil {
+		panic("LoadImage fail")
+	}
+	defer image.Release()
+
+	crop := opencv.Crop(image, 0, 0, 50, 50)
+	opencv.SaveImage("/tmp/crop.jpg", crop, 0)
+	crop.Release()
+
+	os.Exit(0)
+}