Fig. 1. Edge distortion maps. (a) Foggy image; (b) image of reference [10] method; (c) image of reference [17] method; (d) partial magnification of Fig.1(a); (e) partial magnification of Fig.1(b); (f) partial magnification of Fig.1(c)

Fig. 2. Sky distortion maps. (a) Foggy image; (b) image of reference [10] method; (c) image of reference [16] method

Fig. 3. Flow chart of proposed method image defogging

Fig. 4. Comparison of fog removal in dark channel. (a) Original foggy image; (b) reference [10] method; (c) transmission fusion method; (d) partial enlargement of Fig.4 (a); (e) partial enlargement of Fig.4 (b); (f) partial magnification of Fig.4 (c)

Fig. 5. Comparison of brightness fusion methods for defogging. (a) Original foggy image; (b) reference [10] method; (c) transmission fusion method; (d) reference [17] method;(e) brightness fusion method; (f) partial enlargement of Fig.5(b); (g) partial magnification of Fig.5 (c); (h) partial magnification of Fig.5 (d); (i) partial magnification of Fig.5 (e)

Fig. 6. Image comparison of atmospheric light results. (a) Foggy image; (b) reference [10] method; (c) proposed method

Fig. 7. Comparison of detail retention ability. (a) Foggy images;(b) reference [10] method; (c) reference [16] method; (d) reference [17] method; (e) reference [15] method; (f) proposed method

Fig. 8. Comparison of fog removal effect and sky color retention ability. (a) Foggy images; (b) reference [10] method; (c) reference [16] method; (d) reference [17] method; (e) reference [15] method; (f) proposed method