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计算机工程 ›› 2006, Vol. 32 ›› Issue (19): 217-220. doi: 10.3969/j.issn.1000-3428.2006.19.079

• 人工智能及识别技术 • 上一篇    下一篇

基于区间映射规则的数字直方图处理

费风长,方志军,曾卫明,章 琳   

  1. (江西财经大学信息管理学院,南昌 330013)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2006-10-05 发布日期:2006-10-05

Histogram Processing of Digital Image Based on Interval Mapping Law

FEI Fengchang, FANG Zhijun, ZENG Weiming, ZHANG Lin   

  1. (School of Information Technology, Jiangxi University of Finance and Economics, Nanchang 330013)
  • Received:1900-01-01 Revised:1900-01-01 Online:2006-10-05 Published:2006-10-05

摘要: 在经典的单映射规则SML和组映射规则GML的基础上,提出一种新的映射规则——区间映射规则(IML),并提出基于IML的数字图像直方图规定化方法。以8阶灰度直方图为例,通过对常用均衡化方法的实例分析,引出基于IML的直方图均衡化方法——等区间映射均衡化(IIME)。用实验数据分析和证明了IML和IIME的优越性。

关键词: 直方图规定化, 直方图均衡化, 映射规则, 区间映射规则, 等区间映射均衡化

Abstract: This paper presents a new grey-level mapping law for direct histogram specification, interval mapping law(IML). This law is based on the classical single mapping law (SML) and group mapping law (GML). By analyzing an example of the general equalization, IML draws forth the iso-interval mapping law (IIME), a method of direct histogram equalization. In the end, data analysis from the experiment proves the superiority of IML and IIME.

Key words: Histogram specification, Histogram equalization, Mapping law, Interval mapping law, Iso-interval mapping equalization