Visibility Detection Algorithm of Single Fog Image Based on the Ratio of Wavelength Residual Energy

Table 3

Objective evaluation.

Figure 8	Fog removal algorithm	PSNR	IE	EDIR	HS	SSIM
Image e	Dark channel	11.9193	6.4788	0.2781	0.7901	0.8226
	Guided filtering	14.2131	6.6568	0.2772	0.9119	0.9054
	Tarel	13.8469	7.0586	0.3288	0.8132	0.8475
	Chen	14.8958	7.0114	0.3045	0.8985	0.9044
Image f	Dark channel	7.5822	6.9218	0.1479	0.7332	0.7269
	Guided filtering	10.6108	7.4774	0.1530	0.9276	0.9272
	Tarel	15.2983	7.1450	0.1636	0.6182	0.6337
	Chen	11.2834	7.5318	0.1514	0.9465	0.9438