Table 1 Eigenvalues and information content of each principal component

From: Enhancement of polychrome pottery hyperspectral images based on multilevel feature extraction method

Band

Eigenvalue

Total contribution rate

Principal component 1

9,470,567.77

98.28%

Principal component 2

108,521.48

99.41%

Principal component 3

17,450.74

99.59%

Principal component 4

11,026.01

99.77%

Principal component 5

1399.18

99.78%

Principal component 6

960.11

99.79%

Principal component 7

802.77

99.80%