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29 April 2022 A single image defogging algorithm for sky region recognition based on binary mask
GuoJun Li, CaiXia Wang
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Proceedings Volume 12247, International Conference on Image, Signal Processing, and Pattern Recognition (ISPP 2022); 122470L (2022) https://doi.org/10.1117/12.2636832
Event: 2022 International Conference on Image, Signal Processing, and Pattern Recognition, 2022, Guilin, China
Abstract
Since entering the 21st century, technology has developed rapidly, the computer and image processing technology also ushered in a peak period of development.. However, as the natural environment became more hostile, in particular, smog is becoming more common, it will cause the sharpness degradation and color degree distortion of outdoor images collected. The use of these damaged images as input to the system must seriously affect the analysis and understanding of the system as a whole, greatly reduce the performance of the visual system. Therefore, to study how to effectively reconstruct degraded images into original images in foggy environment, it has important application value and practical significance to improve the performance and robustness of vision system. The minimum filtering process using local filtering in the original algorithm will inevitably lead to block effect. In this paper, a filter whose window size varies with the image size is used to solve the blocky phenomenon and halo effect easily caused by the original algorithm. At the same time, this paper uses the sky region recognition algorithm of binary mask graph to prevent the color distortion of the sky part in the image restoration. Then, a guide filter with fine transmittance effect and good speed is applied to further optimize the transmittance map.
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GuoJun Li and CaiXia Wang "A single image defogging algorithm for sky region recognition based on binary mask", Proc. SPIE 12247, International Conference on Image, Signal Processing, and Pattern Recognition (ISPP 2022), 122470L (29 April 2022); https://doi.org/10.1117/12.2636832
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KEYWORDS
Detection and tracking algorithms
Image filtering
Binary data
Digital filtering
Transmittance
Image transmission
Image restoration
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