Fig. 1. Imaging optical fiber bundle. (a) Schematic of the overall structure; (b) schematic of monofilament optical fiber structure

Fig. 2. Optical fiber image beam imaging. (a) Imaging image; (b) pixel distribution

Fig. 3. Schematic of proposed algorithm structure

Fig. 4. Schematic diagram of image split

Fig. 5. Pixel value distribution before and after split

Fig. 6. Comparison of pixel value distribution before and after processing

Fig. 7. Effect after adding honeycomb artifacts. (a) Clean image captured by industrial camera; (b) interference image obtained by simulation

Fig. 8. Comparison of artifact removal results of honeycomb in experiment A. (a) Interfered graph; (b) mean filtering; (c) method in Ref.[11]; (d) method in Ref.[5]; (e) method in Ref.[15]; (f) method in Ref.[6]; (g) guided filtering; (h) proposed method

Fig. 9. Comparison of artifact removal results of honeycomb in experiment B. (a) Interfered graph; (b) mean filtering; (c) method in Ref.[11]; (d) method in Ref.[5]; (e) method in Ref.[15]; (f) method in Ref.[6]; (g) guided filtering; (h) proposed method

Fig. 10. Comparison of real artifact removal results of honeycomb in experiment C. (a) Interfered graph; (b) mean filtering; (c) method in Ref.[11]; (d) method in Ref.[5]; (e) method in Ref.[15]; (f) method in Ref.[6]; (g) guided filtering; (h) proposed method

Fig. 11. Comparison of real artifact removal results of honeycomb in experiment D. (a) Interfered graph; (b) mean filtering; (c) method in Ref.[11]; (d) method in Ref.[5]; (e) method in Ref.[15]; (f) method in Ref.[6]; (g) guided filtering; (h) proposed method

Fig. 12. Environment with white light illumination and light intensity of 100 lx. (a) Interfered graph; (b) mean filtering; (c) method in Ref.[11]; (d) method in Ref.[5]; (e) method in Ref.[15]; (f) method in Ref.[6]; (g) guided filtering; (h) proposed method

Fig. 13. Environment with white light illumination and light intensity of 150 lx. (a) Interfered graph; (b) mean filtering; (c) method in Ref.[11]; (d) method in Ref.[5]; (e) method in Ref.[15]; (f) method in Ref.[6]; (g) guided filtering; (h) proposed method

Fig. 14. Environment with blue light illumination and light intensity of 150 lx. (a) Interfered graph; (b) mean filtering; (c) method in Ref.[11]; (d) method in Ref.[5]; (e) method in Ref.[15]; (f) method in Ref.[6]; (g) guided filtering; (h) proposed method

Fig. 15. Environment with green light illumination and light intensity of 150 lx. (a) Interfered graph; (b) mean filtering; (c) method in Ref.[11]; (d) method in Ref.[5]; (e) method in Ref.[15]; (f) method in Ref.[6]; (g) guided filtering; (h) proposed method