关键词: 图像去雾, 大气散射模型, 四叉树, 饱和度

Abstract: Under the condition of the haze weather, the outdoor scene images tend to have a serious degradation, resulting in the decrease of the image contrast and the color attenuation. In order to obtain clear haze-free image, this paper puts forward a fast color saturation based image to fog algorithm（FIDS）, using quad tree to estimate the atmospheric brightness [A], using saturation arithmetic to estimate the transmissivity function and correction and edge preserving smoothing operation, and the atmospheric scattering model obtains the final fog image from monochrome atmospheric scattering model. Experimental results show that the proposed algorithm can recover the contrast and color of the image, improve the visual definition and operation efficiency of the image.

Key words: image defog, atmospheric scattering model, quadtree, saturation