Dark-channel a priori adaptive image defogging algorithm based on RGB channels and retinex reflectance maps

Yanyue Zhang

doi:10.1117/12.3051325

18 November 2024 Dark-channel a priori adaptive image defogging algorithm based on RGB channels and retinex reflectance maps

Yanyue Zhang

Author Affiliations +

Proceedings Volume 13403, International Conference on Algorithms, High Performance Computing, and Artificial Intelligence (AHPCAI 2024) ; 134030T (2024) https://doi.org/10.1117/12.3051325
Event: International Conference on Algorithms, High Performance Computing, and Artificial Intelligence, 2024, Zhengzhou, China

Abstract

Aiming at the problems of poor visualization effect of recovered image, not rich in image details, too dark and unnatural image, etc., which exist in the dark channel a priori algorithm to deal with the large sky area, a dark channel a priori adaptive image defogging algorithm based on the RGB channel and the Retinex reflectance map is proposed. To address the issue where the restored image appears overly dark and lacks the clarity needed to reveal fine details, the pixel values of the three RGB channels of the original image are calculated and added to the original atmospheric light values to obtain an adaptive function to correct the brightness values. The reflection map in the Retinex algorithm is used to calculate the reflection component of the original image, and then the Gaussian filter is used to estimate the light component of the original image, and the transmittance is obtained by using these two components. The experimental results show that the proposed algorithm can effectively recover the detail information of the foggy image, the defogging is more thorough, the overall smoothness, the color brightness is better, the image is clear and natural, and the computational speed is ahead of the existing algorithms.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Yanyue Zhang "Dark-channel a priori adaptive image defogging algorithm based on RGB channels and retinex reflectance maps", Proc. SPIE 13403, International Conference on Algorithms, High Performance Computing, and Artificial Intelligence (AHPCAI 2024) , 134030T (18 November 2024); https://doi.org/10.1117/12.3051325

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