Adaptive Gamma Correction of Subregion for Non-Uniform Illumination Image Enhancement

Xin Ma; Chunyu Yu; Gang Chen; Ningning Sun; Rongheng Ma

doi:10.3788/LOP232516

Laser & Optoelectronics Progress, Volume. 61, Issue 14, 1437006(2024)

Adaptive Gamma Correction of Subregion for Non-Uniform Illumination Image Enhancement

Xin Ma¹, Chunyu Yu^1、*, Gang Chen², Ningning Sun³, and Rongheng Ma¹

¹College of Electronic and Optical Engineering & College of Flexible Electronics (Future Technology), Nanjing University of Posts and Telecommunications, Nanjing 210023, Jiangsu , China

²Nanjing Jusha Display Technology Co., Ltd., Nanjing 210003, Jiangsu , China

³School of Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China

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Figures & Tables(7)

Fig. 1. Flow chart of the proposed algorithm

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Fig. 2. Schematic of guiding filtering

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Fig. 3. Adaptive target mean curve

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Fig. 4. Fusion effects with different weights

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Fig. 5. SNR of the fusion images with different weights

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Fig. 6. Comparison of effects of seven scene images processed by different algorithms

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Table 1. Objective evaluation parameter comparison of different algorithms at different scenes

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Table 1. Objective evaluation parameter comparison of different algorithms at different scenes

Scene	Algorithm	Entropy	MG	SNR	Time/s	Scene	Algorithm	Entropy	MG	SNR	Time/s
Scene 1	Original	7.1763	4.1338	1.1437	‒	Scene 4	Liu	7.2614	5.6434	1.1937	0.0690
	BPDHE	7.397	6.3879	1.2641	0.1191		RetinexNet	7.6715	5.4591	2.3985	‒
	NPE	7.4791	6.5261	1.6912	7.4554		Ours	7.5198	6.605	1.5513	0.0840
	Liu	7.4593	5.041	1.4442	0.1848	Scene 5	Original	6.3197	4.8926	0.8379	‒
	RetinexNet	7.4851	5.9355	2.2554	‒		BPDHE	6.5918	5.1982	1.0031	0.0784
	Ours	7.7148	9.942	1.854	0.3700		NPE	7.2525	7.5190	2.3226	6.1820
Scene 2	Original	7.0832	11.2924	1.0021	‒		Liu	6.9674	5.3892	1.3966	0.2578
	BPDHE	7.3619	12.1524	1.1528	0.1296		RetinexNet	7.5055	6.4819	2.4263	‒
	NPE	7.5829	15.8408	1.4392	7.5938		Ours	7.2755	9.2042	1.6214	0.4177
	Liu	7.4454	13.1124	1.3313	0.1849	Scene 6	Original	7.3517	8.9271	1.0288	‒
	RetinexNet	7.6289	11.1421	2.1772	‒		BPDHE	7.4643	10.3225	1.1096	0.0343
	Ours	7.6751	18.7087	1.5756	0.6699		NPE	7.8132	13.9486	1.5488	2.0948
Scene 3	Original	7.5125	4.8986	1.3998	‒		Liu	7.6752	11.7422	1.4051	0.0799
	BPDHE	7.6913	6.7605	1.3688	0.1099		RetinexNet	7.7090	11.0098	2.3066	‒
	NPE	7.7569	8.113	2.1312	7.4639		Ours	7.8238	14.6339	1.7465	0.0867
	Liu	7.6929	5.7859	1.7263	0.1795	Scene 7	Original	5.9692	3.1127	0.8210	‒
	RetinexNet	7.6021	5.7534	2.8713	‒		BPDHE	6.5486	4.7267	0.9683	0.0311
	Ours	7.7321	10.9197	2.1703	0.4842		NPE	7.1166	8.7127	1.6029	2.3548
Scene 4	Original	6.6439	4.5488	0.7604	‒		Liu	6.6699	5.1736	1.4152	0.0749
	BPDHE	6.7985	4.7679	0.8166	0.0460		RetinexNet	7.1758	6.8053	1.9575	‒
	NPE	7.5748	7.822	1.6574	2.9061		Ours	7.1923	7.9844	1.6682	0.1222

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Xin Ma, Chunyu Yu, Gang Chen, Ningning Sun, Rongheng Ma. Adaptive Gamma Correction of Subregion for Non-Uniform Illumination Image Enhancement[J]. Laser & Optoelectronics Progress, 2024, 61(14): 1437006

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Paper Information

Category: Digital Image Processing

Received: Nov. 17, 2023

Accepted: Dec. 21, 2023

Published Online: Jul. 8, 2024

The Author Email: Chunyu Yu (yucy@njupt.edu.cn)

DOI:10.3788/LOP232516

CSTR:32186.14.LOP232516

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology