Spectral indices (SIs) assessment toolbox provides a suite of parametric techniques in one toolbox to enable semiautomatic mapping of surface biophysical variables. 

LUT-based Inversion toolbox provides a suite of physically-based inversion routines in one toolbox to enable semiautomatic mapping of surface biophysical variables.  

Machine learning regression algorithms (MLRAs) assessment toolbox provides a suite of non-parametric techniques in one toolbox to enable semiautomatic mapping of surface biophysical variables.