Enhancement dark channel algorithm of color fog image based on the local segmentation

Lijun Yun; Yin Gao; Jun-sheng Shi; Ling-zhang Xu

doi:10.1117/12.2179838

13 April 2015 Enhancement dark channel algorithm of color fog image based on the local segmentation

Lijun Yun, Yin Gao, Jun-sheng Shi, Ling-zhang Xu

Proceedings Volume 9522, Selected Papers from Conferences of the Photoelectronic Technology Committee of the Chinese Society of Astronautics 2014, Part II; 952217 (2015) https://doi.org/10.1117/12.2179838
Event: Selected Proceedings of the Photoelectronic Technology Committee Conferences held August-October 2014, 2014, China, China

Abstract

The classical dark channel theory algorithm has yielded good results in the processing of single fog image, but in some larger contrast regions, it appears image hue, brightness and saturation distortion problems to a certain degree, and also produces halo phenomenon. In the view of the above situation, through a lot of experiments, this paper has found some factors causing the halo phenomenon. The enhancement dark channel algorithm of color fog image based on the local segmentation is proposed. On the basis of the dark channel theory, first of all, the classic dark channel theory of mathematical model is modified, which is mainly to correct the brightness and saturation of image. Then, according to the local adaptive segmentation theory, it process the block of image, and overlap the local image. On the basis of the statistical rules, it obtains each pixel value from the segmentation processing, so as to obtain the local image. At last, using the dark channel theory, it achieves the enhanced fog image. Through the subjective observation and objective evaluation, the algorithm is better than the classic dark channel algorithm in the overall and details.

Citation Download Citation

Lijun Yun, Yin Gao, Jun-sheng Shi, and Ling-zhang Xu "Enhancement dark channel algorithm of color fog image based on the local segmentation", Proc. SPIE 9522, Selected Papers from Conferences of the Photoelectronic Technology Committee of the Chinese Society of Astronautics 2014, Part II, 952217 (13 April 2015); https://doi.org/10.1117/12.2179838

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