Fig. 1. Image model for the scene with haze at night

Fig. 2. Image layer decomposition and color transformation

Fig. 3. The results of nighttime hazy image segmentation

Fig. 4. Nighttime haze-free images and the corresponding synthetic hazy images

Fig. 5. The dehazing results using different transmission

Fig. 6. Comparison of the effects of the proposed method with other methods. From left to right: original image, images obtained with Zhang’s method^[13], Li’s method^[14], Yu’s method^[18] and proposed method

Fig. 7. Comparison of nighttime dehazing algorithms