Image Speckle Denoising for Securing Internet of Smart Sensors

Algorithm 1

Secured image speckle denoising for internet of smart sensors.

Input: the SAR image A
(1)	Extract the edge contour of the central target, carry out expansion, corrosion, and hole filling, form a closed area, and generate a binary image B;
(2)	Read the imageA and Bsize [m. n];
(3)	for p = 1:m
(4)	for q = 1:n
(5)	if B (i, j) = 255
(6)	A (i, j) ; represents the marked area;
(7)	else
(8)	A (i, j) ; represents the unmarked area;
(9)	end; end; end
(10)	Then the marked area and unmarked area in the noisy image are obtained;
(11)	Read the image A size [m. n];
(12)	for i = 1:m
(13)	for j = 1:n
(14)	if current position (i, j) belongs to the marker area
(15)	;
(16)	else
(17)	;
(18)	Use formulas (2) and (11) to calculate the weights;
(19)	end; end; end
Output: the final denoising image