# Segmentation Classes Catalog

## V1/V2 target classes

### vegetation
Used for green cover analysis and NDVI comparison.

### water
Used for water surface extraction and NDWI comparison.

### building
Used for footprint segmentation if a suitable model is available.

### impervious_surface
Used for paved/urban surface estimation.

## Output requirements

Segmentation outputs must support:

- raster mask path,
- polygonized vector output,
- area per class,
- confidence or quality score when available,
- overlay visualization.

## Rule

Segmentation outputs must become geospatial layers, not just image overlays.