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. 2024 Dec 18;20:184. doi: 10.1186/s13007-024-01312-1

Fig. 5.

Fig. 5

Correlation coefficients between leaf water content (LWC) and raw and preprocessed spectral reflectance. R raw reflectance (a), RLR the reciprocal logarithm of reflectance (b), FDRL first-order differential of the reciprocal logarithm of reflectance (c), SDRL second-order differential of the reciprocal logarithm of reflectance (d), FDR first-order differential of reflectance (e), SDR second-order differential of reflectance (f)