diff --git a/src/Contours.cc b/src/Contours.cc
index 69f80d2..018a1e0 100755
--- a/src/Contours.cc
+++ b/src/Contours.cc
@@ -25,6 +25,7 @@ Contour::Init(Handle<Object> target) {
 
 	NODE_SET_PROTOTYPE_METHOD(constructor, "size", Size);
 	NODE_SET_PROTOTYPE_METHOD(constructor, "area", Area);
+	NODE_SET_PROTOTYPE_METHOD(constructor, "arcLength", ArcLength);
 	target->Set(String::NewSymbol("Contours"), m->GetFunction());
 };
 
@@ -55,7 +56,6 @@ Contour::Size(const Arguments &args) {
 	Contour *self = ObjectWrap::Unwrap<Contour>(args.This());
 
 	return scope.Close(Number::New(self->contours.size()));
-
 }
 
 
@@ -68,6 +68,16 @@ Contour::Area(const Arguments &args) {
 
 	//return scope.Close(Number::New(contourArea(self->contours)));
 	return scope.Close(Number::New(contourArea(cv::Mat(self->contours[pos]))));
-
-
+}
+
+
+Handle<Value>
+Contour::ArcLength(const Arguments &args) {
+	HandleScope scope;
+
+	Contour *self = ObjectWrap::Unwrap<Contour>(args.This());
+	int pos = args[0]->NumberValue();
+	bool isClosed = args[1]->BooleanValue();
+
+	return scope.Close(Number::New(arcLength(cv::Mat(self->contours[pos]), isClosed)));
 }
diff --git a/src/Contours.h b/src/Contours.h
index 3e4d21a..9cb3f4c 100755
--- a/src/Contours.h
+++ b/src/Contours.h
@@ -11,10 +11,11 @@ class Contour: public node::ObjectWrap {
 	static void Init(Handle<Object> target);
 	static Handle<Value> New(const Arguments &args);
 
-	Contour();      
+	Contour();
 
 	//JSFUNC(Size)
 	static Handle<Value> Size(const v8::Arguments&);
 	static Handle<Value> Area(const v8::Arguments&);
+	static Handle<Value> ArcLength(const v8::Arguments&);
 };