Fig. 11: Added noise spectrum curves for different recognition algorithms with additive noise and multiplicative noise of 0.07 and 0.05, 0.04 and 0.01.

a shows the spectral curves corresponding to additive noise and multiplicative noise of 0.07 and 0.05, respectively. b shows the spectral curves corresponding to additive noise and multiplicative noise of 0.04 and 0.01, respectively.