计算机工程与应用Issue(9)：155-159,5.DOI:10.3778/j.issn.1002-8331.1205-0226
一种非线性变换的双直方图红外图像增强方法
Bi-histogram equalization method for infrared image enhancement based on nonlinear transfer
摘要
Abstract
The infrared image has large noise and low contrast characteristic. The infrared image enhancement is one of core problems of infrared detection, recognition and tracking applications. Histogram equalization plays an important role in infrared image enhancement techniques, but large defect exists, for example the loss of detail information. This paper proposes an infrared image enhancement method based on subsection histogram with nonlinear transformation. The pixel luminance from the dark region is improved by nonlinear transformation. The histogram is divided into two sections based on foreground and background regional characteristics, and the two histograms are equalized to enhance the contrast of the foreground and background. The experiment proves that this method can effectively improve the brightness of the image;extend the gray range from the target region and enhance the detail in the foreground.关键词
红外图像/图像增强/非线性变换/双直方图均衡Key words
infrared image/image enhancement/nonlinear transfer/bi-histogram equalization分类
信息技术与安全科学引用本文复制引用
李绘卓,范勇,唐峻,唐遵烈,熊平,周建勇..一种非线性变换的双直方图红外图像增强方法[J].计算机工程与应用,2014,(9):155-159,5.基金项目
国家自然科学基金委-中国工程物理研究院联合基金项目（No.10676029，No.10776028）；中电科技集团CCD研发中心经费资助；西南科技大学科研项目（No.11zx3123）。 （）
