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

Table 2

List of top 15 selected features from CS, GR, and RF.

Rank	Features
	Chi-square	Gain ratio/relief-F
1	S(5, 5)AngScMom	WavEnHH_s-8
2	S(4, −4)AngScMom	S(3, 0)SumOfSqs
3	S(0, 4)AngScMom	S(3, 0)Contrast
4	S(0, 2)AngScMom	S(3, 0)AngScMom
5	S(4, 4)AngScMom	S(2, −2)DifEntrp
6	S(2, 2)AngScMom	S(2, −2)DifVarnc
7	S(4, 0)AngScMom	S(2, −2)Entropy
8	S(2, −2)AngScMom	S(3, 0)Correlat
9	S(0, 3)AngScMom	S(3, 0)InvDfMom
10	S(3, −3)AngScMom	S(2, −2)SumVarnc
11	S(3, 0)AngScMom	S(3, 0)SumAverg
12	S(4, 4)InvDfMom	S(3, 0)DifEntrp
13	S(2, 0)AngScMom	S(3, 0)DifVarnc
14	S(3, 3)AngScMom	S(3, 0)Entropy
15	S(1, −1)AngScMom	S(3, 0)SumEntrp