Standard RGB Drone Photo Chlorophyll Stress & Dry-Sprinkler Zone Mapper (VARI)

Deterministic Radiometrically gamma-linearized Visible Atmospherically Resistant Index VARI = (G - R)/(G + R - B) + Excess Green ExG = 2G - R - B engine (.jpg, .tiff, .dng, .geojson) built for DJI Mini 4 Pro, Hunter Irrigation, Rain Bird, QGIS — zero-upload ephemeral Wasm RAM execution.

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