直方图修正在图像增强中的应用  

Histogram Equalization in Image Enhancement Application

作　　者：李春辉[1] 刘辉[1] 钟诚[1] 

机构地区：[1]湖北工业大学电气与电子工程学院,湖北武汉430068

出　　处：《湖北工业大学学报》2011年第2期67-70,共4页Journal of Hubei University of Technology

基　　金：湖北省科技厅自然科学基金资助重点项目(2008CDB395)

摘　　要：讨论了直方图修正在图像增强中的应用.主要是进行直方图均衡化和规定化,对图像灰度级在整个显示范围内进行等间距的排列,最后进行中值滤波去除噪声,从而使图像增强,并在Matlab下进行了仿真.In the process of image formation,transmission or transformation,due to some objective factors,there are different degrees of edge blur and poor local contrast changes in the original image,which reduces the amount of information extracted through the machine and causes errors.It is very important to do the noise filter for the image enhancement of some details.Based on commonly used histogram equalization algorithm,this paper first presents a new algorithm to smooth the changed algorithm,then displays histogram equalization of image gray-scale in the context of the equally-spaced arrangement,and gives the relevant formulas and algorithms.Finally,median filter is used to remove noise to gain image enhancement and Matlab is used to simulate the process.

关 键 词：直方图均衡化 直方图规定化 图像增强 MATLAB 

分 类 号：TN919.8[电子电信—通信与信息系统]