From 9d3da2f2bda9efe11268d158872e8c6877eab121 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Philippe=20R=C3=A9my?= Date: Tue, 21 Feb 2023 14:26:52 +0700 Subject: [PATCH] Update formulas.py --- app/api/formulas.py | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/app/api/formulas.py b/app/api/formulas.py index e399fb93..b98ad1da 100644 --- a/app/api/formulas.py +++ b/app/api/formulas.py @@ -105,6 +105,11 @@ algos = { 'help': _('Enhanced Vegetation Index is useful in areas where NDVI might saturate, by using blue wavelengths to correct soil signals.'), 'range': (-1, 1) }, + 'ARVI': { + 'expr': '(N - (2 * R) + B) / (N + (2 * R) + B)', + 'help': _('Atmospherically Resistant Vegetation Index. Useful when working with imagery for regions with high atmospheric aerosol content.'), + 'range': (-1, 1) + }, 'Thermal C': { 'expr': 'L', 'help': _('Thermal temperature in Celsius degrees.')