基于暗通道和Retinex理论的光斑图像序列增强方法  

Spot image sequence enhancement method based on dark channel and Retinex theory

作　　者：杨卫[1] 张俊丽[2] 吴睿 YANG Wei;ZHANG Junli;WU Rui(Xi’an Eurasia University,Xi'an 710065,China;Xi’an Jiaotong University,Xi'an 710061,China)

机构地区：[1]西安欧亚学院,西安710065 [2]西安交通大学,西安710061

出　　处：《激光杂志》2023年第8期115-119,共5页Laser Journal

基　　金：陕西教育厅专项计划项目(No.19JK0607)。

摘　　要：由于光斑图像细节模糊、整体质量较低,无法获取清晰的目标主体,基于此,在暗通道和Retinex理论的基础上,提出一种光斑图像序列增强方法。计算光斑图像中局部光环的方向角,利用暗通道先验条件,完成介质传输率的初始估计。在对光斑图像进行融合、滤波处理一系列操作后,通过Retinex理论实现介质传输率的最终估计。复原光斑图像,并将原本的RGB色彩空间转换为HSV模式,经过色调调整后,完成光斑图像序列增强。实验结果表明,所提方法的光斑图像序列增强效果较好,保留了更多的细节信息,同时提升了图像整体的层次感。Because the details of the spot image are fuzzy and the overall quality is low,it is impossible to obtain a clear target.Based on this,a spot image sequence enhancement method is proposed on the basis of dark channel and Retinex theory.The direction angle of the local halo in the spot image is calculated,and the initial estimation of the medium transmission rate is completed by using the dark channel prior condition.After a series of operations of spot image fusion and filtering,the final estimation of medium transmission rate is realized by Retinex theory.Restore the spot image,convert the original RGB color space to HSV mode,and complete the spot image sequence enhancement after tone adjustment.The experimental results show that the proposed method has better enhancement effect of the spot image sequence,retains more detailed information,and improves the overall layering of the image.

关 键 词：暗通道 RETINEX理论 介质传输率 光斑图像 序列增强 HSV模式 

分 类 号：TN365[电子电信—物理电子学]