func (mat *Mat) Clone() *Mat {
	mat_new := C.cvCloneMat((*C.CvMat)(mat))
	return (*Mat)(mat_new)
}
func (mat *Mat) Clone() *Mat {
	mat_new := C.cvCloneMat((*C.CvMat)(mat))
	return (*Mat)(mat_new)
}
/* Creates an exact copy of the input matrix (except, may be, step value) */