I. Introduction
Haze is defined as a condition that dust, smoke particulates, or water droplets obscure the clarity of the atmosphere. As light gets scattered or absorbed through these particles, subjects in the scene lose contrast. Haze often causes significant degradation of the image quality and it may adversely affect performance of computer vision algorithms. Additionally, these images typically exhibit degraded color information as light absorption in the medium varies based on the wavelength. As a result, foggy images often show greenish/bluish tinge with red component being suppressed. To mitigate this problem, various dehazing methods are presented.