Single Image Dehazing Method Guided by Edge Prior Information

Wan Liang; Meizhen Huang; Guilin Xu

doi:10.3788/LOP242274

Laser & Optoelectronics Progress, Volume. 62, Issue 10, 1037010(2025)

Single Image Dehazing Method Guided by Edge Prior Information

Wan Liang¹, Meizhen Huang^1、*, and Guilin Xu²

¹Department of Instrument Science and Engineering, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China

²Guizhou Zhicheng Technology Co., Ltd., Guiyang 430048, Guizhou , China

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Figures & Tables(7)

Fig. 1. Overall framework of EPIGN

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Fig. 2. Detailed frame of each unit

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Fig. 3. Comparison of EPIGN and classical dehazing methods on RESIDE indoor dataset

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Fig. 4. Qualitative comparison of five dehazing methods on RESIDE indoor dataset. (a) Hazy input; (b) GridDehazrNet; (c) MSBDN; (d) FFA-Net; (e) Dehamer; (f) EPIGN(ours); (g) ground truth

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Fig. 5. Qualitative comparison of five dehazing methods on RESIDE outdoor dataset. (a) Hazy input; (b) GridDehazrNet; (c) MSBDN; (d) FFA-Net; (e) Dehamer; (f) EPIGN(ours); (g) ground truth

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Table 1. Quantitative comparison of various dehazing methods on RESIDE dataset

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Table 1. Quantitative comparison of various dehazing methods on RESIDE dataset

Method	ITS		OTS		Overhead
	SOTS indoor		SOTS outdoor		Overhead
	PSNR /dB	SSIM	PSNR /dB	SSIM	Params /10⁶	FLOPs /10⁹
DCP^［5］	16.62	0.818	19.13	0.815	‒	‒
DehazeNet^［6］	19.82	0.821	24.75	0.927	0.009	0.58
AOD-Net^［10］	20.51	0.816	24.14	0.920	0.002	0.12
GFN^［36］	22.30	0.880	21.55	0.844	0.499	14.94
GCANet ^［37］	30.23	0.980	‒	‒	0.702	18.41
GridDehazeNet^［38］	32.16	0.984	30.86	0.982	0.956	21.49
MSBDN^［14］	33.67	0.985	33.48	0.982	31.350	41.54
PFDN^［39］	32.68	0.976	‒	‒	11.270	50.46
FFA-Net^［12］	36.39	0.989	33.57	0.984	4.456	287.50
AECR-Net^［13］	37.17	0.990	‒	‒	2.611	52.20
Dehamer^［23］	36.63	0.988	35.18	0.986	132.500	48.93
EPIGN-S	34.76	0.988	34.18	0.986	0.693	11.40
EPIGN	37.58	0.991	35.54	0.988	2.024	24.84

Table 2. EPIGN-S ablation assay
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Table 2. EPIGN-S ablation assay
Baseline MDSC CAFN EFEM EFF block PSNR /dB SSIM
√ 31.53 0.975
√ √ 33.17 0.982
√ √ √ 33.63 0.983
√ √ √ √ 34.42 0.986
√ √ √ √ √ 34.76 0.988

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Wan Liang, Meizhen Huang, Guilin Xu. Single Image Dehazing Method Guided by Edge Prior Information[J]. Laser & Optoelectronics Progress, 2025, 62(10): 1037010

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