Fig. 1. Block diagram of algorithm principle

Fig. 2. Results of sky segmentation.

Fig. 3. Hazy image and its atmosphere light estimation results

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

Fig. 5. Results of haze density estimation and image dehazing

Fig. 6. Results of hazy images transmission and dehazing

Fig. 7. Comparison of the dehazing methods without sky

Fig. 8. Comparison of the dehazing methods with sky

Fig. 9. Hazy images and the corresponding ground truth images