Nabhya logoNabhya

Blog

Crop intelligence, written down.

Practical notes on RGB-based crop health mapping — what the signal can decide, how to capture for it, and how to read the output in the field. Updated as we ship.

All posts

Guide

What is NDVI? A complete guide for farmers and drone operators

NDVI explained in plain language: how the vegetation index is calculated, what the values mean, how drones capture it, and how RGB-based vegetation indices compare.

Read →
Buyer's guide

Best precision agriculture software in 2026: how to choose

A buyer's framework for precision agriculture software — farm management, drone mapping, crop health analytics and APIs — and where each category fits.

Read →
Buyer's guide

Drone mapping software for agriculture: what to look for

How to evaluate agriculture drone software — flight planning, stitching, crop health analysis and integrations — and how to add crop health to the mapping stack you already use.

Read →
Comparison

NDVI drone vs NDVI camera: do you need multispectral?

Should you buy a multispectral NDVI camera or an NDVI drone, or use the RGB camera you already have? A practical decision guide.

Read →
Explainer

RGB vegetation indices explained: VARI, ExG and GLI vs NDVI

The visible-light vegetation indices — VARI, Excess Green (ExG) and GLI — explained with formulas, strengths, limits, and how learned RGB NDVI compares.

Read →
Workflow

Crop stress detection with drones: a step-by-step workflow

A practical workflow for detecting crop stress from drone imagery — capture, analysis, zone review and ground-truthing.

Read →
Guide

Crop health monitoring in India: a drone guide by season

How Indian growers, FPOs and drone service providers can use drone-based crop health monitoring across kharif and rabi seasons.

Read →
Comparison

NDVI vs RGB: what you actually lose without a multispectral camera

A practical comparison of calibrated NDVI and near-NDVI inferred from RGB drone imagery — what each signal can decide, where RGB is enough, and where a multispectral payload is still required.

Read →
Workflow

How to run crop health monitoring on the drone you already fly

A field-to-report workflow for drone service providers: capture settings, upload, and turning a standard RGB survey flight into a sellable crop health deliverable without new hardware.

Read →
Field guide

Reading a vegetation stress map: zones, canopy cover, and what to act on first

How to interpret a Nabhya output: what the colour ramp means, how percentile management zones are built, why canopy cover matters, and how to turn the worst decile into a scouting plan.

Read →

Get a result

Send us one frame.

If you have a recent RGB flight sitting on a drive, send a single frame and we'll return the full result for it — free, no account. It's the fastest way to find out whether this is useful to you.

Returned
Vigour map, zones, canopy mask, summary
Turnaround
Same day, seconds of compute
Cost
Free during onboarding

Your imagery stays yours. We don't resell or publish it.