Fig. 1. Fluorescent color card

Fig. 2. Spectral intensity curves of 64 color blocks

Fig. 3. Smart phone and a homemade phone case (case with battery pack and fluorescent lamp)

Fig. 4. Comparison of initial and reconstructed fluorescence spectra of three representative fluorescent color patches in 31 bands. (a) Correlation coefficient is 0.9996 (maximum value); (b) correlation coefficient is 0.9384 (minimum value); (c) correlation coefficient is 0.9855 (close to average value)

Fig. 5. RGB mode autofluorescence images of the skin and oral cavity

Fig. 6. Reconstruction of multispectral autofluorescence data cube

Fig. 7. Spectral analysis and bacteria-targeted feature mapping

Fig. 8. Quantitative analysis of porphyrin and background autofluorescence produced by bacteria