otsu Function

public pure function otsu(img, maximum) result(rst)

Applie binarization with ostu's method.

Arguments

Type	Intent	Optional	Attributes		Name
integer,	intent(in)			::	img(:,:,:)	Image array that has pixel values.
integer,	intent(in)			::	maximum	Max pixel value.

Return Value integer, allocatable, (:,:,:)

Image Array that applied binarization.