Defogging algorithm of color images based on Gaussian function weighted histogram specification

Abstract

Under the condition of hazy weather, although there are many existing defogging algorithms of images, those which really realize real time and high efficiency are few. The defogging in aspects of road traffic, video supervision and target tracking is unsatisfactory. Therefore, we propose a kind of color image defogging algorithm based on histogram specification of Gaussian function weighting. This algorithm firstly adopts the HSI space luminance conversion model based on the scattering property, and extracts the intensity image I. Then, it adopts histogram specification algorithm based on Gaussian function weighting for processing, further converting to RGB color space to obtain the intensified image. The processing effect is obviously superior to the histogram specification algorithm, moreover, the calculated amount is small and the processing speed is fast without manual intervention.