A Statistical-Textural-Features Based Approach for Classification of Solid Drugs Using Surface Microscopic Images

Table 3

LOO results for all individual and combined datasets using 281 features.

Datasets	Number of features	SVM			KNN			NB
		Acc	Sn	Sp	Acc	Sn	Sp	Acc	Sn	Sp
A1	281	57.14	64.71	45.45	67.86	64.71	72.73	50.00	47.06	54.55
A2	281	56.67	58.82	53.85	50.00	41.18	61.54	53.33	47.06	61.54
A3	281	63.33	64.71	61.54	36.67	29.41	46.15	46.67	35.29	61.54
T1	281	56.67	58.82	53.85	53.33	58.82	46.15	60.00	47.06	76.92
T2	281	71.88	70.59	73.33	78.13	82.35	73.33	65.63	64.71	66.67
T3	281	69.44	70.59	68.42	63.89	58.82	68.42	69.44	88.24	52.63
W1	281	80.65	82.35	78.57	67.74	58.82	78.57	83.87	82.35	85.71
W2	281	71.88	76.47	66.67	78.13	76.47	80	68.75	64.71	73.33
W3	281	87.88	82.35	93.75	87.88	88.24	87.5	84.85	94.12	75
A1, A2, and A3	281	66.67	52.94	72.97	62.96	17.65	83.78	57.41	35.29	67.57
T1, T2, and T3	281	68.75	58.82	72.34	75.00	41.18	87.23	60.94	70.59	57.45
W1, W2, and W3	281	85.48	70.59	91.11	82.26	58.82	91.11	83.87	76.47	86.67
All	281	84.25	52.94	88.37	85.62	11.76	95.35	64.38	58.82	65.12