[Retracted] Local Privacy Protection for Sensitive Areas in Multiface Images

Algorithm 1

LAP.

	Input: original image X, privacy budget , parameters m and n, subgraph similarity expectation
	Output: Image satisfying differential privacy
(1)	Read the original image X, convert the image into gray matrix and store it in matrix
(2)	for i = 1 to m
(3)	for i = 1 to n
(4)	=  +
(5)	end for
(6)	end for
(7)	Output privacy protected picture