Modified Transmission Map Estimation Function

In addressing hazy conditions, techniques for enhancing image quality predominantly center on estimating the transmission map to restore a haze-free image. However, the conventional transmission map estimation function, based on the atmospheric scattering model, tends to suffer from issues such as over-saturation and over-dehazing. This is primarily attributed to its limited variability with respect to the scene depth. This chapter introduces an approach by presenting a modified transmission map estimation function. This function incorporates a saturation component as an additional haze-relevant feature. The inclusion of this saturation component aims to mitigate problems associated with over-saturation and over-dehazing, thereby enhancing the effectiveness of image quality improvement techniques in hazy conditions.