Research Article
Soybean Saponin Content Detection Based on Spectral and Image Information Combination
Table 4
PLSR model results for different preprocessing methods.
| | Preprocessing method | | RMSE |
| | None | 0.5456 | 3.7539 × 10−3 | | S-G | 0.5076 | 3.9076 × 10−3 | | SNV | 0.6392 | 3.4510 × 10−3 | | DT | 0.5838 | 3.5924 × 10−3 | | MSC | 0.6268 | 4.2473 × 10−3 | | BL | 0.5384 | 3.7835 × 10−3 | | FD | 0.5737 | 3.6359 × 10−3 | | SD | 0.5392 | 3.7815 × 10−3 |
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