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Table 3 Statistical data of SFDI under different disease levels

From: Applying spectral fractal dimension index to predict the SPAD value of rice leaves under bacterial blight disease stress

Disease level

Mean

Maximum

Minimum

Level 0

1.1807

1.2042

1.1372

Level 1

1.2190

1.2408

1.1975

Level 2

1.2595

1.2895

1.2401

Level 3

1.2779

1.3036

1.2483

Level 4

1.3199

1.4126

1.2627

Level 5

1.3962

1.5040

1.3595