How to Create an NDVI image from Remote Sensing data

How to get an NDVI image using FME's NDVICalculator transformer. This demo gets Sentinel-2 satellite imagery from AWS and uses the red and infrared spectral bands. NDVI, or "normalized difference vegetation index", is a calculation used to determine the health of plants in a landscape. This transformer performs an NDVI (or SAVI) calculation and applies a color ramp. Greener areas mean healthy vegetation, dark blue is ocean, and red areas mean small amounts of vegetation or water.