Fig. 9.

Feature selection for classification of samples using only subdiffuse reflectance texture metrics ($f_x=1.37{\mathrm{mm}}^{-1}$, $\lambda =490\mathrm{nm}$). The percent of $n=100$ classification iterations that used specific texture metrics are shown in heat map form for (a) adipose, (b) connective, and (c) FCD versus the three malignant tissue subtypes. Texture features listed to the left of (a) apply to all subplots. Boxed percentages identify how frequently the most important metric(s) were used in each benign–malignant classification scenario.