An improved infrared image enhancement algorithm based on multi-scale decomposition

Honghui Zhang; Haibo Luo; Xin-rong Yu; Qing-hai Ding

doi:10.1117/12.2070296

24 November 2014 An improved infrared image enhancement algorithm based on multi-scale decomposition

Honghui Zhang, Haibo Luo, Xin-rong Yu, Qing-hai Ding

Proceedings Volume 9301, International Symposium on Optoelectronic Technology and Application 2014: Image Processing and Pattern Recognition; 93010P (2014) https://doi.org/10.1117/12.2070296
Event: International Symposium on Optoelectronic Technology and Application 2014, 2014, Beijing, China

Abstract

Due to the restriction of infrared imaging component and the radiation of atmosphere, infrared images are discontented with image contrast, blurry, large yawp. Aimed on these problems, a multi-scale image enhancement algorithm is proposed. The main principle is as follows: firstly, On the basis of the multi-scale image decomposition, We use an edge-preserving spatial filter that instead of the Gaussion filter proposed in the original version, adjust the scale-dependent factor With a weighted information. Secondly, contrast is equalized by applying nonlinear amplification. Thirdly, subband image is the weighted sum of sampled subband image and subsampled then upsampled subband image by a factor of two. Finally, Image reconstruction was applied. Experiment results show that the proposed method can enhance the original infrared image effectively and improve the contrast, moreover, it also can reserve the details and edges of the image well.

Citation Download Citation

Honghui Zhang, Haibo Luo, Xin-rong Yu, and Qing-hai Ding "An improved infrared image enhancement algorithm based on multi-scale decomposition", Proc. SPIE 9301, International Symposium on Optoelectronic Technology and Application 2014: Image Processing and Pattern Recognition, 93010P (24 November 2014); https://doi.org/10.1117/12.2070296

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KEYWORDS

Image enhancement

Image processing

Infrared imaging

Infrared radiation

Image filtering

Image contrast enhancement

Optical filters

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