A Fast Method for Haze Image Restoration
Wang Wei-pen · Journal of Huaqiao University · 2015
According to the problem of image degraded in hazy condition,a new haze image restoration method is proposed.Based on the physical property of atmospheric scattering model and optical reflectance imaging,the physical constraint of atmospheric veil is presented at first.The rough atmospheric veil is obtained by using bilateral filter which has good abilities of keeping edge.Then the local mean and local standard deviation are introduced to estimate the contrast of image,therefore the estimation of local haze density is decreased through good contrast region in order to get more accurate atmospheric veil.Finally,the ideal scene radiance is recovered through solving the equation of haze image.Experimental results show that this method not only achieve great restoration for image detail and color information,but also avoid the shortcomings of edge effect and over saturated.