How Satellite Bands (Landsat/Sentinal) and indices (NDVI/NDBI) were composite together (Layer stacked) (In a single layer) before performing supervised classification (MLC/SVM/RF etc)? How it reduces the heterogeneity in data?
To the best of my knowledge this is not a common practice in remote sensing to mix thematic rasters and continues rasters to perform supervised classifications,where did you learn this from if I may ask and what is the aim of doing that?