# 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: rvi4re
name: 4-band Red Edge Ratio Vegetation Index
short_name: RVI4RE
formula: (alpha * RE3 + (1 - alpha) * RE2)/(beta * R + (1 - beta) * RE1)
bands:
- RE3
- RE2
- R
- RE1
constants:
- alpha
- beta
domain: vegetation
theme: vegetation
concepts: []
rank: null
display:
  colormap: rdylgn
  range:
  - -0.2
  - 0.9
references:
- url: https://doi.org/10.1016/j.jag.2022.102793
date_of_addition: '2025-09-30'
contributor: https://github.com/davemlz
platforms:
- Sentinel-2
source:
  authority: awesome-spectral-indices
  commit_sha: 7f28d3fe68af1287f7449faf0685659e73197212
  upstream_id: RVI4RE
match_tags:
- band
- edge
- index
- r
- ratio
- re1
- re2
- re3
- red
- vegetation
status: stable