diff --git a/src/Contours.cc b/src/Contours.cc
index 2193c23..b2f8d04 100755
--- a/src/Contours.cc
+++ b/src/Contours.cc
@@ -31,7 +31,7 @@ Contour::Init(Handle<Object> target) {
 	NODE_SET_PROTOTYPE_METHOD(constructor, "approxPolyDP", ApproxPolyDP);
 	NODE_SET_PROTOTYPE_METHOD(constructor, "convexHull", ConvexHull);
 	NODE_SET_PROTOTYPE_METHOD(constructor, "boundingRect", BoundingRect);
-	NODE_SET_PROTOTYPE_METHOD(constructor, "minAreaRect", BoundingRect);
+	NODE_SET_PROTOTYPE_METHOD(constructor, "minAreaRect", MinAreaRect);
 	NODE_SET_PROTOTYPE_METHOD(constructor, "isConvex", IsConvex);
 	NODE_SET_PROTOTYPE_METHOD(constructor, "moments", Moments);
 	target->Set(String::NewSymbol("Contours"), m->GetFunction());
diff --git a/src/Matrix.cc b/src/Matrix.cc
index 5b0f960..caf347a 100755
--- a/src/Matrix.cc
+++ b/src/Matrix.cc
@@ -67,6 +67,7 @@ Matrix::Init(Handle<Object> target) {
 	NODE_SET_PROTOTYPE_METHOD(constructor, "absDiff", AbsDiff);
 	NODE_SET_PROTOTYPE_METHOD(constructor, "addWeighted", AddWeighted);
 	NODE_SET_PROTOTYPE_METHOD(constructor, "bitwiseXor", BitwiseXor);
+	NODE_SET_PROTOTYPE_METHOD(constructor, "bitwiseNot", BitwiseNot);
 	NODE_SET_PROTOTYPE_METHOD(constructor, "countNonZero", CountNonZero);
 	NODE_SET_PROTOTYPE_METHOD(constructor, "canny", Canny);
 	NODE_SET_PROTOTYPE_METHOD(constructor, "dilate", Dilate);
@@ -999,6 +1000,18 @@ Matrix::BitwiseXor(const v8::Arguments& args) {
 	return scope.Close(v8::Null());
 }
 
+Handle<Value>
+Matrix::BitwiseNot(const v8::Arguments& args) {
+	HandleScope scope;
+
+	Matrix *self = ObjectWrap::Unwrap<Matrix>(args.This());
+
+	Matrix *src1 = ObjectWrap::Unwrap<Matrix>(args[0]->ToObject());
+	cv::bitwise_not(src1->mat, self->mat);
+
+	return scope.Close(v8::Null());
+}
+
 Handle<Value>
 Matrix::CountNonZero(const v8::Arguments& args) {
 	HandleScope scope;
@@ -1755,7 +1768,9 @@ Matrix::PutText(const v8::Arguments& args) {
     color = setColor(objColor);
   }
 
-  cv::putText(self->mat, text, cv::Point(x, y), constFont, 1, color, 2);
+  double scale = args.Length() < 6 ? 1 : args[5]->NumberValue();
+
+  cv::putText(self->mat, text, cv::Point(x, y), constFont, scale, color, 2);
 
   return scope.Close(Undefined());
 }
diff --git a/src/Matrix.h b/src/Matrix.h
index 7257093..af35f19 100755
--- a/src/Matrix.h
+++ b/src/Matrix.h
@@ -3,7 +3,7 @@
 class Matrix: public node::ObjectWrap {
   public:
 
-  	cv::Mat mat;
+    cv::Mat mat;
     static Persistent<FunctionTemplate> constructor;
     static void Init(Handle<Object> target);
     static Handle<Value> New(const Arguments &args);
@@ -57,6 +57,7 @@ class Matrix: public node::ObjectWrap {
     JSFUNC(AbsDiff)
     JSFUNC(AddWeighted)
     JSFUNC(BitwiseXor)
+    JSFUNC(BitwiseNot)
     JSFUNC(CountNonZero)
     //JSFUNC(Split)
     JSFUNC(Canny)
@@ -97,13 +98,13 @@ class Matrix: public node::ObjectWrap {
     JSFUNC(GetPerspectiveTransform) 
     JSFUNC(WarpPerspective)
 /*
-	static Handle<Value> Val(const Arguments& args);
-	static Handle<Value> RowRange(const Arguments& args);
-	static Handle<Value> ColRange(const Arguments& args);
-	static Handle<Value> Diag(const Arguments& args);
-	static Handle<Value> Clone(const Arguments& args);
-	static Handle<Value> CopyTo(const Arguments& args);
-	static Handle<Value> ConvertTo(const Arguments& args);
+    static Handle<Value> Val(const Arguments& args);
+    static Handle<Value> RowRange(const Arguments& args);
+    static Handle<Value> ColRange(const Arguments& args);
+    static Handle<Value> Diag(const Arguments& args);
+    static Handle<Value> Clone(const Arguments& args);
+    static Handle<Value> CopyTo(const Arguments& args);
+    static Handle<Value> ConvertTo(const Arguments& args);
     static Handle<Value> AssignTo(const Arguments& args);
     static Handle<Value> SetTo(const Arguments& args);
     static Handle<Value> Reshape(const Arguments& args);