Towards Attack to MemGuard with Nonlocal-Means Method

Algorithm 1

Nonlocal-means attack method.

	Input:, , , and .
	Output:.
(1)	fordo
(2)
(3)	//obtain by the symmetric padding of ;
(4)	;
(5)	;
(6)	;
(7)	;
(8)	;
(9)	;
(10)	fordo
(11)	ifthen
(12)	continue;
(13)	;
(14)	;
(15)
(16)	ifthen
(17)	;
(18)	sweight = sweight +
(19)
(20)
(21)	;
(22)	ifthen
(23)	;
(24)	else
(25)