Laser & Optoelectronics Progress, Volume. 62, Issue 14, 1401001(2025)

Adaptive Image Dehazing Algorithm Based on Dark Channel Prior Theory

Jiyu Xiao1,2,3, Yunmeng Liu1,3、**, Shizhao Li1,3, and Lei Ding1,2,3、*
Author Affiliations
  • 1Key Laboratory of Infrared System Detection and Imaging Technology, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai 200083, China
  • 2School of Information Science and Technology, ShanghaiTech University, Shanghai 201210, China
  • 3Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai 200083, China
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    This study proposed an adaptive image dehazing algorithm designed to address the limitations of the traditional dark channel dehazing algorithm, which struggles to adapt to different scenarios. The proposed algorithm first performs brightness and darkness segmentation on the image, followed by an improved method for determining atmospheric light values and transmittance for preliminary dehazing. Next, the processed image is fused with the image preprocessed using limited contrast adaptive histogram equalization and subsequently subjected to gamma correction to obtain the final dehazed image. Experimental validation was conducted using publicly available datasets and images collected from real-life scenarios. The results demonstrate that the proposed algorithm owns an effective dehazing performance, considerably enhancing image quality. Compared with the traditional dark channel dehazing algorithm, the images processed by our algorithm exhibit a 44.1% improvement in peak signal-to-noise ratio, a 32.2% increase in structural similarity, a 2.5% boost in information entropy, a 9.5% enhancement in visible edge normalization gradient mean, and a 33.7% increase in clarity measurement index.

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    Jiyu Xiao, Yunmeng Liu, Shizhao Li, Lei Ding. Adaptive Image Dehazing Algorithm Based on Dark Channel Prior Theory[J]. Laser & Optoelectronics Progress, 2025, 62(14): 1401001

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    Paper Information

    Category: Atmospheric Optics and Oceanic Optics

    Received: Dec. 17, 2024

    Accepted: Feb. 4, 2025

    Published Online: Jul. 3, 2025

    The Author Email: Yunmeng Liu (lym_sitp@163.com), Lei Ding (leiding@mail.sitp.ac.cn)

    DOI:10.3788/LOP242440

    CSTR:32186.14.LOP242440

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