Real-time haze removal by GPU acceleration based on dark channel prior algorithm

Author(s):  
wending xiang ◽  
wenjin liu ◽  
zhenghua guo ◽  
junlong wu ◽  
ping yang ◽  
...  
2020 ◽  
Vol 10 (3) ◽  
pp. 1165 ◽  
Author(s):  
Yutaro Iwamoto ◽  
Naoaki Hashimoto ◽  
Yen-Wei Chen

This study proposes real-time haze removal from a single image using normalised pixel-wise dark-channel prior (DCP). DCP assumes that at least one RGB colour channel within most local patches in a haze-free image has a low-intensity value. Since the spatial resolution of the transmission map depends on the patch size and it loses the detailed structure with large patch sizes, original work refines the transmission map using an image-matting technique. However, it requires high computational cost and is not adequate for real-time application. To solve these problems, we use normalised pixel-wise haze estimation without losing the detailed structure of the transmission map. This study also proposes robust atmospheric-light estimation using a coarse-to-fine search strategy and down-sampled haze estimation for acceleration. Experiments with actual and simulated haze images showed that the proposed method achieves real-time results of visually and quantitatively acceptable quality compared with other conventional methods of haze removal.


2014 ◽  
Vol 11 (24) ◽  
pp. 20141002-20141002 ◽  
Author(s):  
Zhengfa Liang ◽  
Hengzhu Liu ◽  
Botao Zhang ◽  
Benzhang Wang

2019 ◽  
Vol 28 (5) ◽  
pp. 2212-2227 ◽  
Author(s):  
Ping-Juei Liu ◽  
Shi-Jinn Horng ◽  
Jzau-Sheng Lin ◽  
Tianrui Li

2012 ◽  
Vol 457-458 ◽  
pp. 1397-1402
Author(s):  
Xiao Tian Wu ◽  
Xing Hao Ding ◽  
Quan Xiao

2016 ◽  
Vol 45 (9) ◽  
pp. 928002
Author(s):  
宋颖超 Song Yingchao ◽  
罗海波 Luo Haibo ◽  
惠 斌 Hui Bin ◽  
常 铮 Chang Zheng

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