Fig. 1. Definition of the aperture for beam transmission

Fig. 2. Flow chart of removing highlights

Fig. 3. Fill effect images. (a) Pending pixel; (b) 4-unicom filling effects image; (c) 8-unicom filling effects image

Fig. 4. Experimental system structure

Fig. 5. MSF image and images of pixel rough classification. (a) MSF image; (b) reflection component map after pixel rough classification;(c) diffuse reflection component map after pixel rough classification

Fig. 6. Chromaticity images. (a) Original chromaticity image; (b) reflection component chromaticity image; (c) diffuse reflection component chromaticity image

Fig. 7. Images before and after processing. (a) Original image; (b) diffuse reflection component image after processing; (c) specular component image after processing

Fig. 8. Industrial metal workpiece

Fig. 9. Comparison images processed with different methods. (a) Image obtained with the method in ref. [10]; (b) image processed with the proposed method

Fig. 10. Comparison before and after processing. (a) Pixel bar graph; (b) grayscale change graph

Fig. 11. Reconstructed images of metal workpiece. (a) Reconstruction result of the original image; (b) reconstruction result of the image processed with the proposed method

Fig. 12. Reconstructed images of cup lid. (a) Reconstruction results of the original image; (b) reconstruction results after processing using the proposed method