Enhancement of infrared image details based on gradient histogram transform

	Enhancement of infrared image details based on gradient histogram transform
	Zhao W.-D.; Xu Z.-J.; Zhao J.; Wang H.; Wang F.
	2014
发表期刊	Guangxue Jingmi Gongcheng/Optics and Precision Engineering
ISSN	ISBN/1004924X
卷号	22 期号:7 页码:1962-1968
摘要	According to typical problems of low signal to noise ratio and fuzzy edges of target details in an infrared image, this article proposes a infrared image enhancement algorithm for image details based on gradient histogram transform. By analyzing the gradient histogram of the infrared image, a Gaussian function to extend the gradient histogram was constructed to increase the gradient value. By using the histogram specification method to realize the image gradient histogram specification, the transform gradient field was obtained. The Total Variation (TV) model was introduced to control the noise while reconstructing the gradient field. The experiment results indicate that the image information entropy of the algorithm is improved significantly as compared with that of histogram equalization method and specification method. Therefore, it enhances image details and gives qualified image information for target detection, tracking and identification. Based on the finite difference iteration and Visiual C + + programming, the proposed algorithm has image processing time of about 40 ms for an image with the size of 480 pixel 480 pixel, which satisfies the requirements of engineering applications in image processing.
收录类别	EI
语种	中文
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/43963
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Zhao W.-D.,Xu Z.-J.,Zhao J.,et al. Enhancement of infrared image details based on gradient histogram transform[J]. Guangxue Jingmi Gongcheng/Optics and Precision Engineering,2014,22(7):1962-1968.
APA	Zhao W.-D.,Xu Z.-J.,Zhao J.,Wang H.,&Wang F..(2014).Enhancement of infrared image details based on gradient histogram transform.Guangxue Jingmi Gongcheng/Optics and Precision Engineering,22(7),1962-1968.
MLA	Zhao W.-D.,et al."Enhancement of infrared image details based on gradient histogram transform".Guangxue Jingmi Gongcheng/Optics and Precision Engineering 22.7(2014):1962-1968.

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