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Table 1 Characteristics of 5 materials in 130 samples used in method testing and analysis

From: Classification by diagnosing all absorption features (CDAF) for the most abundant minerals in airborne hyperspectral images

Class

Material number in the list of ENVI spectral library

Number of labeled samples

Alunite

23-28

27

Kaolinite

233-240

43

Buddingtonite

67 and 68

13

Calcite

72-74

15

Silica

88, 91, 380-383, 345-346

32