液晶与显示2016，Vol.31Issue(10)：973-982,10.DOI:10.3788/YJYXS20163110.0973
基于广义线性系统和非锐化掩膜的图像增强算法
Image enhancement algorithm based on generalized linear system and unsharp masking
摘要
Abstract
In order to solve the problem that unsharp masking suffers from noise over-enhancement, halo effect and data overflow,an image enhancement algorithm based on generalized linear system and unsharp masking is proposed.Firstly,the algorithm adopts bilateral filter and generalized subtraction to decompose image and obtains the detail layer and the root layer.Then the detail layer and the root layer are dealt with adaptive gain control and contrast enhancement operation,respectively.Finally,the generalized addition is adopted to carry out superposition to realize image enhancement.And the test experiments for three different types of images are carried out.The outcome shows that the pro-posed algorithm can get good results in restraining noise and halo effect,enhancing contrast and detail of image and obtaining fine visual effect.The entropy of images is increased by 10.9012%,1 6.014 3%and 9.1878% respectively.It indicates that the image enhancement algorithm based on generalized lin-ear system and unsharp masking is reasonable and effective.关键词
非锐化掩膜/图像增强/广义线性系统/细节层/基础层Key words
unsharp masking/image enhancement/generalized linear system/detail layer/base layer分类
信息技术与安全科学引用本文复制引用
范日召,何斌,刘燕君,李军凯,陈洋君..基于广义线性系统和非锐化掩膜的图像增强算法[J].液晶与显示,2016,31(10):973-982,10.基金项目
广东省引进创新科研团队项目(No．2011S013) Supported by Guangdong Province,Introduction of Innovation R&D Team (No．2011S013) （No．2011S013）
