Visibility Enhancement of Single Hazy Images Using Hybrid Dark Channel Prior
Yi-Jui Cheng, Bo‐Hao Chen, Shih-Chia Huang, Sy‐Yen Kuo, Andrey Kopylov, Oleg Seredin, Leonid Moiseevich Mestetskiy, B. V. Vishnyakov, Yury V. Vizilter, О. В. Выголов, Chia-Ruei Lian, Chi-Ting Wu · 2013
Outdoor images captured during inclement weather conditions generally exhibit visibility degradation. Localized light sources often result from activation of streetlights and vehicle headlights and are common scenarios in these conditions. The presence of localized light sources in hazy images may cause the generation of over saturation artifacts when those images are restored by traditional state-of-the-art haze removal techniques. Therefore, we propose a novel haze removal approach based on the proposed hybrid dark channel prior technique in order to remedy the problems associated with localized light sources during image restoration. The overall results show that the proposed haze removal approach can recover haze-free images more effectively than can the other previous state-of-the-art haze removal approach while avoiding over-saturation.