计算机工程2017，Vol.43Issue(10)：246-252,258,8.DOI:10.3969/j.issn.1000-3428.2017.10.041
基于双向耦合的单幅图像快速去雾算法
Fast Single Image Haze Removal Algorithm Based on Bidirectional Coupling
摘要
Abstract
The transmission map estimated by the haze removal algorithm based on dark channel prior has low definition.The algorithm using soft matting to optimize the transmission map has high complexity and is time consuming.The complexity of the algorithm is low when the classical bootstrap filtering optimization is used,but the recovered image has halos at jump in depth of field.In order to solve these problems,this paper proposes a fast haze removal algorithm.Color attenuation prior is used to replace dark channel priors.A linear model is established to simplify the process of solving transmission map,thus a transmission map of the original estimation is obtained quickly.The estimated transmission map is used as the input image of the guided filtering.Through down sampling and filtering,the complexity of the algorithm is reduced.Different interpolation algorithms are used to interpolate the flat region and the edge region of the output image,so as to get the transmission map with the original size.Experimental results show that the algorithm can restore the fog-free image as well as the details and color of the image fast and effectively.Under the premise of guaranteeing the image quality,the operation efficiency of the algorithm is greatly improved,and the algorithm complexity is reduced,which meets the real-time requirements in practical applications.关键词
图像去雾/颜色衰减先验/快速引导滤波/下采样/插值Key words
image haze removal/color attenuation prior/fast guided filtering/down sampling/interpolation分类
信息技术与安全科学引用本文复制引用
董亚运,毕笃彦,何林远,眭萍..基于双向耦合的单幅图像快速去雾算法[J].计算机工程,2017,43(10):246-252,258,8.基金项目
国家自然科学基金(61372167,61379104). （61372167,61379104）
