Aiming to degraded phenomena of images in foggy weather,a new entirely self-adapting method of image clearness was proposed according to an atmospheric model.Under the gray distributing characteristic of an image,the optimal normal distribution of the gray for sky region can be gained.Then,the gray mean of the sky distribution can be obtained according to the optimal normal distribution.Simultaneously,the same depth neighborhood of image can be divided by the arithmetic of gray histogram,and the equations c...
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