An Improved Image Dehazing Algorithm Based on Dark Channel Prior

doi:10.3969/j.issn.1006-2475.2019.02.005

Abstract

Abstract: Aiming at the problem that the dark channel prior image dehazing algorithm produces color distortion and dim image in offwhite scenery or bright sky, an improved method based on dark channel prior is proposed. By correcting the computing problem of transmission rate which causes color distortion, the visual effect of the image can be improved. In addition, an enhanced free-haze image is obtained by reducing the high brightness value of the three color channels and using the mean value method. The experimental results show that the proposed method largely eliminates color distortion in the bright areas of the dehazed image and has better color degrees.

Key words: image dehazing, dark channel prior, color channels, image enhancement, atmosphere scattering model

CLC Number:

TP391

BAO Bin1, LI Ya-gang2. An Improved Image Dehazing Algorithm Based on Dark Channel Prior[J]. Computer and Modernization, doi: 10.3969/j.issn.1006-2475.2019.02.005.

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