VIs | Estimated N% = a (measured N%) + b | R2 | RMSE (%) |
NDVI | 0.728x + 0.1509 | 0.72 | 0.10 |
NDVIred edge | 0.769 + 0.143 | 0.74 | 0.091 |
EVI2 | 0.7778x + 0.107 | 0.73 | 0.095 |
SRred edge | 0.756x + 0.147 | 0.75 | 0.091 |
CIgreen | 0.891x + 0.03 | 0.76 | 0.090 |
CIred edge | 0.752x + 0.141 | 0.75 | 0.091 |
MTCI | 0.785x + 0.121 | 0.75 | 0.090 |
RTVIcore | 0.778x + 0.163 | 0.72 | 0.104 |