Infrared and Visible Image Fusion via Fast Approximate Bilateral Filter and Local Energy Characteristics

Algorithm 1

Image decomposition and reconstruction.

	Input:
	Output: FU
	1)
	2) Image decomposition
	forn = 1,2,3,4,5 do
	end for
	forn = 1,2,3,4 do
	end for
	3) Image fusion
	The fused base layer is obtained by (16)
	forn = 1,2,3,4 do
	The fused small-scale layers are obtained by (18)
	end for
	The fused large-scale layer is obtained by (19)
	4) The fused image is obtained by (20)