Thresholding histogram equalization

被引：0

作者：

Chuang K.-S. ^{[1
]}

Chen S. ^{[1
]}

Hwang I.-M. ^{[1
]}

机构：

[1] Department of Nuclear Science, National Tsinghua University, Hsinchu

来源：

Journal of Digital Imaging | 2001年 / 14卷 / 4期

关键词：

Histogram equalization; Image enhancement; Portal image; Threshold;

D O I：

10.1007/s10278-001-0103-z

中图分类号：

学科分类号：

摘要：

The drawbacks of adaptive histogram equalization techniques are the loss of definition on the edges of the object and overenhancement of noise in the images. These drawbacks can be avoided if the noise is excluded in the equalization transformation function computation. A method has been developed to separate the histogram into zones, each with its own equalization transformation. This method can be used to suppress the nonanatomic noise and enhance only certain parts of the object. This method can be combined with other adaptive histogram equalization techniques. Preliminary results indicate that this method can produce images with superior contrast.

引用

页码：182 / 185

页数：3

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