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  Indian J Med Microbiol
 

Figure 2: Spectral fingerprint differences between the (A) raw spectra, and post transformation with (B) baseline-correction, (C) smoothing by standard normal variate (SNV), and (D) first-order derivatives and SNV processing

Figure 2: Spectral fingerprint differences between the (A) raw spectra, and post transformation with (B) baseline-correction, (C) smoothing by standard normal variate (SNV), and (D) first-order derivatives and SNV processing