Cropwise
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REMOTE SENSING

Using the Image Zone Generation API

Requirements:

Generate prescription zones from satellite imagery for precision agriculture applications. This service creates NDVI-based zones that can be used for variable rate applications, targeted scouting, and differential field management.

You can use the Generate Image Zones endpoint to create prescription zones from your satellite images.

When to use

Use Image Zone Generation when you need:

  • Variable rate applications: Create zones for differential input application
  • Precision agriculture: Optimize resource allocation based on field variability
  • Prescription zones: Divide fields into uniform prescription units
  • Targeted scouting: Focus attention on specific field areas

How it works

The service analyzes satellite imagery to create prescription zones using two main approaches: target number of zones or threshold-based zoning. The API processes NDVI values and spatial patterns to generate zones that can be exported as GeoJSON or Shapefile formats.

Quick start

Generating your first zones

  • Target number method: Create a specific number of zones from satellite images
  • Threshold-based method: Create zones based on NDVI threshold ranges and cell size

Common use cases

  • Variable rate applications: Create zones for differential input application based on vegetation patterns
  • Precision agriculture: Generate prescription zones for targeted field management
  • Threshold-based zoning: Create zones based on specific NDVI value ranges
  • Multi-image analysis: Combine multiple satellite images for comprehensive zone generation

Zone generation methods

Target Number Method

  • Best for: Simple zone generation with a predefined number of zones
  • Parameters: Image IDs and target number of zones
  • Output: Automatically divides field into specified number of zones

Threshold-Based Method

  • Best for: Custom zone definition based on NDVI value ranges
  • Parameters: Image IDs, cell size, and prescription threshold mapping
  • Output: Zones based on specific NDVI threshold ranges

Export formats

GeoJSON (API Response)

  • Use case: Direct API response, web applications
  • Features: Lightweight, web-friendly format
  • Contents: Zone geometries as FeatureCollection

Shapefile (Export Endpoint)

  • Use case: GIS software, precision agriculture equipment
  • Features: Industry standard, wide compatibility
  • Contents: Zone polygons with attributes in ZIP format

Quality considerations

  • Image quality: Use cloud-free, high-quality images
  • Temporal stability: Multiple images with similar NDVI provide more stable zones
  • Field boundaries: Ensure accurate field boundary definition

Next steps