--- layout: example.html title: NDVI from a Sentinel 2 COG shortdesc: Calculating NDVI and applying a custom color map. docs: > The GeoTIFF layer in this example draws from two Sentinel 2 sources: a red band and a near infrared band. The layer style includes a `color` expression that calculates the Normalized Difference Vegetation Index (NDVI) from values in the two bands. The `interpolate` expression is used to map NDVI values to colors. tags: "cog, ndvi" ---