A dynamic histogram equalization for image contrast enhancement

被引：918

作者：

Abdullah-Al-Wadud, M. ^{[1
]}

Kabir, Md. Hasanul ^{[1
]}

Dewan, M. Ali Akber ^{[1
]}

Chae, Oksam ^{[1
]}

机构：

[1] Kyung Hee Univ, Dept Comp Engn, Yongin 446701, Kyunggi Do, South Korea

来源：

IEEE TRANSACTIONS ON CONSUMER ELECTRONICS | 2007年 / 53卷 / 02期

关键词：

contrast enhancement; equalization; normal distribution; histogram partition;

D O I：

10.1109/TCE.2007.381734

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this paper, a smart contrast enhancement technique based on conventional histogram equalization (HE) algorithm is proposed. This Dynamic Histogram Equalization (DHE) technique takes control over the affect of traditional HE so that it performs the enhancement of an image without making any loss of details in it. DHE partitions the image histogram based on local minima and assigns specific gray level ranges for each partition before equalizing them separately. These partitions further go though a repartitioning test to ensure the absence of any dominating portions. This method outperforms other present approaches by enhancing the contrast well without introducing severe side effects, such as washed out appearance, checkerboard effects etc., or undesirable artifacts(1).

引用

页码：593 / 600

页数：8

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