Fig. 1. Selection of wavelength points based on genetic algorithms

Fig. 2. Recognition rate as population size increasing

Fig. 3. Curve of convergence time as population size increasing

Fig. 4. Curve of recognition rate as crossing rate changing

Fig. 5. Curve of convergence time as crossover rate changing

Fig. 6. Curve of recognition rate as variation rate changing

Fig. 7. Curve of convergence time as variation rate changing

Fig. 8. Curve of recognition rate when characteristic wavelength points increasing