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  Indian J Med Microbiol
 

Figure 4: (a) Red, green, and blue image of the sample using black ballpoint pen 2 covering black ballpoint pen 1. (b) Hyperspectral image of the sample using black ballpoint pen 2 covering black ballpoint pen 1. (c) Red, green, and blue image of the sample using black ballpoint pen 11 covering black ballpoint pen 10. (d) Hyperspectral image of the sample using black ballpoint pen 11 covering black ballpoint pen 10

Figure 4: (a) Red, green, and blue image of the sample using black ballpoint pen 2 covering black ballpoint pen 1. (b) Hyperspectral image of the sample using black ballpoint pen 2 covering black ballpoint pen 1. (c) Red, green, and blue image of the sample using black ballpoint pen 11 covering black ballpoint pen 10. (d) Hyperspectral image of the sample using black ballpoint pen 11 covering black ballpoint pen 10