diff --git a/README.md b/README.md
index eb5a48c..01f337b 100644
--- a/README.md
+++ b/README.md
@@ -41,7 +41,7 @@ Also add following frameworks to your project:
 
 Also add following libs :
 
-- libc++.dylib
+- libc++.tdb
 
 
 ## OpenCV README
diff --git a/opencv2.framework/Versions/A/Headers/core/core.hpp b/opencv2.framework/Versions/A/Headers/core/core.hpp
index cafba0f..2851ddb 100644
--- a/opencv2.framework/Versions/A/Headers/core/core.hpp
+++ b/opencv2.framework/Versions/A/Headers/core/core.hpp
@@ -880,7 +880,7 @@ template<typename _Tp> class Rect_
     //! checks whether the rectangle contains the point
     bool contains(const Point_<_Tp>& pt) const;
 
-    _Tp x, y, width, height; //< the top-left corner, as well as width and height of the rectangle
+    _Tp x, y, width, height; //< the top-left corner, as well as width and height of the rectangle. Though, in your algorithms you may count x and y from the bottom-left corner
 };