Single image dehazing

In this paper we present a new method for estimating the optical transmission in hazy scenes given a single input image. Based on this estimation, the scattered light is eliminated to increase scene visibility and recover haze-free scene contrasts. In this new approach we formulate a refined image formation model that accounts for surface shading in addition to the transmission function. This allows us to resolve ambiguities in the data by searching for a solution in which the resulting shading and transmission functions are locally statistically uncorrelated. A similar principle is used to estimate the color of the haze. Results demonstrate the new method abilities to remove the haze layer as well as provide a reliable transmission estimate which can be used for additional applications such as image refocusing and novel view synthesis. CR Categories: I.3.3 [Computer Graphics]: Picture/Image Generation--Display algorithms; I.4.1 [Image Processing and Computer Vision]: Digitization and...

• Type: Journal
• Year: 2008
• Where: TOG
• Authors: Raanan Fattal
• Keywords: Image, Refined Image Formation, Single Input Image, TOG 2008