%This function implements the gaussian smooth for an histogram an then it %can be used to find the thershold. It uses the COUNTS variable that is %returned by the imhist funcion an w is the size of the window that you %want to use. It has to be a odd number. if not, the funcion will not run %properly.

将图像直方图进行平滑，获得双峰分布形式，并通过双峰特性进行图像二值化。opencv3.1.0, vs2015。