# Generated by scripts/sync_indices.py from Awesome Spectral Indices (MIT).
# DO NOT EDIT BY HAND. Edit overlays (_asi_*.yaml, _folia_*.yaml) and re-run.
# Spec: docs/spec/SPECTRAL_INDICES.md
slug: blfei
name: Built-Up Land Features Extraction Index
short_name: BLFEI
formula: (((G+R+S2)/3.0)-S1)/(((G+R+S2)/3.0)+S1)
bands:
- G
- R
- S2
- S1
domain: urban
theme: infrastructure
concepts: []
rank: null
display:
  colormap: ylorbr
  range:
  - 0.0
  - 1.0
references:
- url: https://doi.org/10.1080/10106049.2018.1497094
date_of_addition: '2022-02-09'
contributor: https://github.com/davemlz
platforms:
- Sentinel-2
- Landsat-OLI
- Landsat-TM
- Landsat-ETM+
- MODIS
source:
  authority: awesome-spectral-indices
  commit_sha: 7f28d3fe68af1287f7449faf0685659e73197212
  upstream_id: BLFEI
match_tags:
- built
- extraction
- features
- g
- index
- land
- r
- s1
- s2
- urban
status: stable