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ILWIS (The Integrated Land and Water Information System) is a Windows-based, integrated GIS and Remote Sensing (RS) open source software supporting:

  • Visualization of raster, vector and tabular data
  • Interactive retrieval of attribute information associated with spatial data
  • Manipulation of raster, vector and tabular data
  • Implementing/developing algorithms for air/space borne image data processing
  • GIS analytical tools
  • Modeling dynamic spatial systems behaviors using modeler tools
  • 3D analysis of spatial temporal events using space-time-cube’ tools
  • Calculations on raster and tabular data using Python command lines
  • Direct access to spatial and tabular data of any format (via connectors)
  • Using remote server via WPS-ILWIS Bridge
  • Multitask operations
  • Educational platform for teaching GIS and RS
  • Python script language for automation of repetitive procedures

ILWIS functionality for vectors includes many operations namely: converting analogue data to digital via digitizing, interpolation from isolines or points, pattern analysis, distance calculation, segment or point density analysis etc. As for raster data: distance calculation, generating a Digital Elevation Model (DEM), calculation of slope/aspect, deriving attribute maps, classifying maps, crossing maps and mathematical manipulation of maps pixel values are few of many ILWIS functionality. For satellite imagery it includes: atmospheric correction, image fusion, image segmentation, sampling and classification, filtering, multi-band statistics, cloud detection, pixel unmixing, multi-spectral/temporal analysis and many more functionalities. Moreover, ILWIS provides extensive editing tools for spatial and tabular data, provides WPS extension to carry out ILWIS commands on a remote server, provides tools for 3D analysis of spatial temporal events, supports generating animations and performing calculation on data via integrating ILWIS-objects in Python and connecting to external data and operations via source and operational connectors.