Itseez/opencv — pull request #1774 by LeszekSwirski (2013-11-08 16:34:58+00:00)
Title: Removed "using namespace cv" from imagestorage.h

Fixes an issue where `mat.hpp`'s `ACCESS_MASK` was being pulled into global scope and clashing with an `ACCESS_MASK` defined in windows headers.

http://answers.opencv.org/question/23608/ambiguous-symbol-error-with-windows-8-sdk-and/