Remote Sensing with QGIS: Calculate NDVI

This could be the most-used remote sensing index

NDVI calculated from a Landsat 8 image. All photos by Author.

Vegetation indices are a staple remote sensing product and the normalized difference vegetation index (NDVI) may be the most widely used vegetation index. To calculate NDVI you simply need appropriate imagery and a program that allows you to interact with the image data. QGIS is a great, free option for a GIS…