It is important to extract the information from images which have poor contrasts and colors acquired in bad weather.This paper proposes an effective method to remove haze from a single input image. First

focusing on sea images with deep and wild view

the formulas of relative depth are given based on a projection model from 3D to 2D. Then

using the dark channel prior

the sky intensity and reference depth can be obtained more accurate. At last

the degrade images can be recovered by relative scene depths model and atmosphere physical model.Our results demonstrate that our approach performs better than the dark channel prior method.