[1]CHEN Ke,KE Wende,XU Bo,et al.An improved assessment method for the color image defogging effect[J].CAAI Transactions on Intelligent Systems,2015,10(5):803-809.[doi:10.11992/tis.201406003]
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An improved assessment method for the color image defogging effect

CAAI Transactions on Intelligent Systems[ISSN 1673-4785/CN 23-1538/TP] Volume: 10 Number of periods: 2015 5 Page number: 803-809 Column: 学术论文—人工智能基础 Public date: 2015-10-25
Title:
An improved assessment method for the color image defogging effect
Author(s):
CHEN Ke1;  KE Wende1;  XU Bo1;  ZHANG Liangjun2
1. Department of Computer Science and Technology, Guangdong University of Petrochemical Technology, Maoming 525000, China;
2. Guangzhou TipDM Information Technology Co., Ltd., Guangzhou 510663, China
Keywords:
image defogging; defogging effect assessment; atmospheric scattering model; opponent color space; contrast of visible edges
CLC:
TP391
DOI:
10.11992/tis.201406003
Abstract:
Currently, there is no adequate evaluation method for image defogging effect. Aiming at this, an improved method for the color image defogging effect assessment is proposed. By this method, either the edge’s contrast enhancement or the color distortion is considered. Based on the atmospheric scattering model of an atomized image, the method first converts the original image to the opponent color space, thus deriving a standard for measuring the color distortion. Then, by combining the evaluation means for contrast enhancement, a unified assessment index for color image is generated, with objective evaluation results and good human visual perception. The defogging effects of many defogging methods were evaluated by comparison among the visible edge ratio, CNC value, and the criteria proposed in this paper. The results show that the improved assessment criteria can better reflect defogging quality and is closer to expected visual judgment.
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