11 July 2016 Single image dehazing algorithm using wavelet decomposition and fast kernel regression model
Author Affiliations +
Abstract
In order to address the problems of discontinuity and block effect for the dehazing method based on dark channel prior, we improved this method using wavelet decomposition, fast kernel regression model, and bicubic interpolation. First, spatial resolution of the hazy image was reduced by the downsampling method with Haar wavelet decomposition. Second, the fast kernel regression model was proposed to smooth the central transmission with local neighbor transmissions. Last, the smoothed transmission for the approximation image was resized to the hazy image by the bicubic interpolation method. Experiments were carried out on synthetic hazy images with known ground truth and real-world hazy images without ground truth. The regions of sudden change of depth in the dehazed images by our method were more smooth and continuous than those of several state-of-the-art methods, and contrast of our method was higher than that of other methods. Indexes based on the concept of visibility level, mean squared error, and structural similarity of our method were better than those of other methods.
© 2016 SPIE and IS&T
Xie Cong-Hua, Xie Cong-Hua, Qiao Wei-Wei, Qiao Wei-Wei, Zhang Xiu-Xiang, Zhang Xiu-Xiang, Zhu Feng, Zhu Feng, } "Single image dehazing algorithm using wavelet decomposition and fast kernel regression model," Journal of Electronic Imaging 25(4), 043003 (11 July 2016). https://doi.org/10.1117/1.JEI.25.4.043003 . Submission:
JOURNAL ARTICLE
12 PAGES


SHARE
RELATED CONTENT

Haze removal from a single image
Proceedings of SPIE (October 25 2013)
Single image dehazing based on dark channel prior
Proceedings of SPIE (December 08 2011)

Back to Top