Fig. 1. Comparison of foggy day images （a） and dark channel images （b）

Fig. 2. Architecture of the proposed method

Fig. 3. Comparison of the results of different filtering windows

Fig. 4. Fogged images and their histograms

Fig. 5. Dark channel image and adaptive thresholding segmentation results

Fig. 6. Comparison of traditional dark channel and mixing channel

Fig. 7. Dark channel fusion results

Fig. 8. Comparison of recovered images before and after window correction

Fig. 9. Comparison of dark area segmentation results

Fig. 10. Comparison of outdoor scene image restoration

Fig. 11. Comparison of indoor scene image restoration

Fig. 12. Histogram of objective evaluation indexes of image defogging results of different algorithms. （a） PSNR； （b） SSIM； （c） Defogging time of different algorithms.