Calculate vegetation health using Near Infrared (NIR) and Red spectral bands. Perform precise scientific raster calculations directly in your browser without uploading data to any server.
The Normalized Difference Vegetation Index (NDVI) is a widely used remote sensing index that quantifies vegetation by measuring the difference between near-infrared (which vegetation strongly reflects) and red light (which vegetation absorbs).
| Value Range | General Interpretation |
|---|---|
| < 0.00 | Water, snow, clouds, or non-vegetated surfaces |
| 0.00 – 0.20 | Bare soil, rocks, or very sparse vegetation |
| 0.20 – 0.40 | Sparse vegetation (shrubs, grasslands) |
| 0.40 – 0.60 | Moderate vegetation (crops, light forests) |
| 0.60 – 0.80 | Dense vegetation (healthy crops, canopy) |
| 0.80 – 1.00 | Very dense, healthy vegetation (rainforests) |
* Note: Classification thresholds may vary depending on the sensor, atmospheric conditions, season, vegetation type, preprocessing techniques, soil background, and radiometric correction methods. This table serves as a general guide, not a universal rule.