Table 3 Analysis of the estimation accuracy of the water content. The model was selected by the following standard: the larger the R2, the smaller the RE and RMSE and the higher the accuracy of the model.

From: Improving the Accuracy of the Hyperspectral Model for Apple Canopy Water Content Prediction using the Equidistant Sampling Method

Models

Determination coefficient

Root mean square error

Relative error

R2

RMSE

RE

Random sampling model

0.7413

0.0441

0.0755

Equidistant sampling model

0.8221

0.0365

0.0626

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