一种改进的仿生彩色图像增强算法  

An improved bio-inspired algorithm for color image enhancement

作　　者：何惜琴[1] 许艳华[2] 

机构地区：[1]闽南理工学院电子与电气工程学院,福建石狮362700 [2]闽南理工学院光电与机电工程学院,福建石狮362700

出　　处：《闽江学院学报》2017年第5期49-55,共7页Journal of Minjiang University

摘　　要：原始的仿生彩色图像增强算法存在边缘效应和缺乏自适应性等不足.提出一种改进算法,通过改进全局亮度调整的方法来增强算法在不同场景的适应能力,同时采用能够抑制梯度反转的引导滤波器来估计邻域平均亮度,从而避免伪边缘现象.该方法对于大部分非均匀光照的图像具有出众的视觉效果.The original bio-inspired algorithm for color image enhancement has the edge effect and lack of self adaptability.In this paper,the global brightness adjustment method is used to enhance the adaptability of the algorithm in different scenes,at the same time,we can estimate the average brightness of the neighborhood by using the guide filter which can suppress the gradient inversion,so as to avoid the false edge phenomenon.The improved method has a superior visual effect for most non-uniform illumination images.

关 键 词：图像增强 颜色恢复 自适应 引导滤波器 

分 类 号：TP391.4[自动化与计算机技术—计算机应用技术]