Layer-based single image dehazing by per-pixel haze detection

Abstract

In outdoor environments, light reflected from object surfaces is commonly scattered due to the impurities of the aerosol, or the presence of atmospheric phenomena such as fog and haze. Aside from scattering, the absorption coefficient presents another important factor that attenuates the reflected light of distant objects reaching the camera lens. As a result, images taken in bad weather conditions (or, similarly, underwater and aerial photographs) are characterized by poor contrast, lower saturation and additional noise.