sr2vi: Calculate Vegetation Index from Landsat surface reflectance...

In dutri001/bfastSpatial: Utilities to monitor for change on satellite image time-series

Description

Extract layers, apply mask (optional), crop (optional), calculate NDVI (possible other indices supported in the future) and write output to file (optional)

Usage

sr2vi(x, vi = "ndvi", e = NULL, mask = NULL, keep = c(0), L = 0.5,
  ...)

Arguments

x	Character. File name of the hdf file containing the bands, or list of filenames (geoTiffs).
vi	Character. Vegetation index to be computed. 'ndvi', 'evi' and 'savi' are supported at the moment. The function will first attempt to find if a pre-processed version of the index is present in the list supplied or in the .hdf file and will use that layer when available.
e	Extent object or object that can be coerced as extent.
mask	Character or NULL. The name of the cloud/Land mask to be applied to the output (e.g.: mask='fmask')
keep	Numeric. Can take multiple values. Which values of the mask layer should be kept?
L	Numeric. Soil-adjustment factor for SAVI (ignored if vi != 'savi'). L can take on values between 0 and 1, and a default of 0.5 is typically used.
...	Arguments to be passed to writeRaster

Value

A rasterLayer object

Author(s)

Loic Dutrieux

See Also

processLandsat and processLandsatBatch for wrapper and wrapper/batcher functions

dutri001/bfastSpatial documentation built on May 15, 2019, 6:05 p.m.