Spectral indices
Spectral indices are widely used in the remote sensing community. This repository documents classical and new spectral indices for different remote sensing applications. All spectral indices in the repository are curated and available in different environments and programming languages. You can check out the curated list of spectral indices here, and it's available in CSV and JSON if you want to use it in your environment. Preface – Artificial Intelligence Tutorial
Expressions
Formulas for indices are presented as strings/expressions (like "(NR)/(N+R)") that can be easily evaluated. The parameters used in the expressions of each index follow this standard:
| Description | Standard | Spectral Range (nm) | Sentinel-2 | Landsat-89 | Landsat-457 | MODIS |
|---|---|---|---|---|---|---|
| Aerosols | A | 400 - 455 | B1 | B1 | ||
| Blue | B | 450 - 530 | B2 | B2 | B1 | B3 |
| Green 1 | G1 | 510 - 550 | B11 | |||
| Green | G | 510 - 600 | B3 | B3 | B2 | B4 |
| Yellow | Y | 585 - 625 | ||||
| Red |