文档介绍:152 四川测绘第 30 卷第 4 期 2007 年 8 月
一种基于直方图均衡化改进的图像增强算法
车国泉 秦军 陈于林
(西南交通大学 土木工程学院, 四川成都 610031)
[摘要] 本文分析了传统的灰度图像直方图均衡化算法的不足,提出了一种基于概率的灰度图像直方图均衡化
的改进算法。该方法给出了较合理的变换关系,使运算结果有较大改善,而且保留了传统算法的快速、自动化
的特点。
[关键词] 直方图均衡化; 图像增强; 算法
[中图分类号]TP751 [文献标识码] A [文章编号]1001-8379(2007)04-0152-03
A METHOD IMPROVED ON HISTOGRAM EQUALIZATION
FOR IMAGE ENHANCEMENT
CHE Guo-quan QIN Jun CHEN Yu-lin
(Dept. of Surveying Engineering,Southwest Jiaotong University, Chengdu 610031, China)
Abstract: The disadvantage of traditional histogram equalization is analyzed in this paper,and a new improved
method is put forward based on probability of histogram equalization. It is proved that this method gives a better
conversion, not only can make the result a great progress but also can be as fast and automatic as the traditional one.
Key words: histogram equalization; image enhancement; algorithm
1 引言 变换后的图像层次感更差