现代电子技术2025，Vol.48Issue(5)：75-78,4.DOI:10.16652/j.issn.1004-373x.2025.05.012
基于梯度直方图变换的低照度图像边缘细节增强处理系统
Low illumination image edge detail enhancement processing system based on gradient histogram transform
摘要
Abstract
The low sharpness of low illumination images and the difficulties in processing their edge detail information re-sult in low visual quality.In view of the above,this paper designs a low illumination image edge detail enhancement processing system based on gradient histogram transform.Firstly,an exponential derivative function is used to correct the brightness channel of the low illumination images and adjust their brightness.Then,the Gaussian function is used as the regularization function for gradient histogram transform,extracting the edge and texture information of the images with corrected brightness channels,and performing gradient histogram transform.Finally,the Retinex algorithm and Gaussian convolution function are selected to esti-mate the image incident light based on the gradient histogram transform results of the low illumination images,so as to achieve the edge detail enhancement processing of the low illumination images.The system test results show that the system can signifi-cantly enhance the edge details of the low illumination images,improve the visual quality of the images,and the information en-tropy of the enhanced images is higher than 6.关键词
梯度直方图/低照度图像/边缘细节/增强处理/指数派生函数/Retinex算法Key words
gradient histogram/low illumination image/edge detail/enhanced processing/exponential derivative function/Retinex algorithm分类
信息技术与安全科学引用本文复制引用
王铭勋,张晓辉,于心俊,申慧男..基于梯度直方图变换的低照度图像边缘细节增强处理系统[J].现代电子技术,2025,48(5):75-78,4.基金项目
河南省自然科学基金项目(202300410117) （202300410117）
河南省科技攻关项目(192102210240) （192102210240）
