Fig. 1. LCTF-based underwater imaging spectrometer

Fig. 2. Schematic diagram of the spectral reflectance measurement test device of the LCTF-based underwater image spectrometer

Fig. 3. Schematic diagram of the spectral reflectance measurement test device

Fig. 4. Pixel response ratio of blackboard and whiteboard in water with different turbidity

Fig. 5. Spectral reflectivity of different color blocks in clear water

Fig. 6. Spectral reflectivity of yellow color patches under different water bodies and different light conditions

Fig. 7. Spectral images of color palettes collected under water with different turbidits, and spectral reflectance of different color patches obtained by processing

Fig. 7. [in Chinese]