摘要
基于暗原色先验的方法去雾效果较好,但也存在处理效率不高、天空区域容易产生较为明显的失真等缺点。采用双边滤波与最大值滤波相结合的方法取代软抠图对透射率进行优化,通过判断大气光强度和暗通道差值绝对值大小来区分雾图中明亮区域与暗原色区域,并削弱明亮天空区域的去雾。实验表明,本文算法不仅有效降低了传统算法的时间复杂度,还达到了较好的视觉效果。
The method based on dark channel prior can dehaze effectively,but it has some disadvantages,including lowproccssing efficiencyand producing more obvious distortion easily in the sky areas. This paper adopts bilateral filtering and maximum filtering method combined to optimize the transmission map instead of soft matting, d iv iding the image in to b r ig h t areas and d a rk c h a n n e l areas b y absolute value o f the difference of atmospheric light and dark channel ,and weakening these bright areas to defonot only reduccs the time complexity of the traditional algorithm,but also achieves a good visual effect.
出处
《微型机与应用》
2017年第16期53-55,共3页
Microcomputer & Its Applications
关键词
图像去雾
暗原色先验
双边滤波
处理速度
haze removal
dark channel prior
bi lateral fi l tering
p rocessing speed
