Visibility enhancement techniques for fog degraded images: A comparative analysis with performance evaluation

Low visibility is regarded as the fundamental cause for increasing number of accidents. When bad weather condition exists mainly due to fog, haze, snow, darkness, etc., the driver is unable to observe a distinct view of route. Out of the bad atmospheric condition, fog is one of the major sources of the accident because the visibility of fog remains very low which is less than 1 km. It is the natural phenomenon that decreases the contrast and color fidelity of objects in the captured image and makes the object difficult to see through naked eyes. The main goal of this paper is to perform a comparative analysis of some well-known visibility enhancement techniques. This paper also implemented three well-known fog removal algorithms, and for assessing the efficiency of the methods used, qualitative assessment evaluation is accomplished along with comparative statistical analysis and algorithms efficiency comparison.