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Proceedings Paper

A new approach for infrared image contrast enhancement
Author(s): Mingli Shao; Guixi Liu; Xianhong Liu; Dongbo Zhu
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Paper Abstract

In this paper, we propose a new algorithm to enhance global and local contrast of infrared image. The aim of our research is to carry out pretreatment for infrared video moving objects tracking. For the inherent difficulty, it is difficult for infrared image enhancement to get comparatively ideal result by adopting only one kind of method. So we propose a novel algorithm. First an enhancement algorithm is proposed based on plateau histogram using a self-adaptive threshold to enhance global contrast, which is different from the traditional histogram equalization algorithm. Second step, after getting a nonlinear gain function, the equalized infrared image is transformed by discrete stationary wavelet. Then the high frequency sub-bands are enhanced with the gain function better than linear filter. It also can suppress the amplification of noise. Experimental results show that the new algorithm can enhance the contrast of infrared image effectively and get more excellent visual effect than traditional histogram equalization method and unsharp masking method.

Paper Details

Date Published: 19 May 2006
PDF: 6 pages
Proc. SPIE 6150, 2nd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, 615009 (19 May 2006); doi: 10.1117/12.676901
Show Author Affiliations
Mingli Shao, Xidian Univ. (China)
Guixi Liu, Xidian Univ. (China)
Xianhong Liu, Xidian Univ. (China)
Dongbo Zhu, Xidian Univ. (China)


Published in SPIE Proceedings Vol. 6150:
2nd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment

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