SOFTWARE


Software use in geography mainly in the field of Remote Sensing. A Remote sensing software is a software application that processes different remote sensing data, generating geographical information of the earth from the satellite and airborne sensor data. These applications are able to read specialized file formats that contain sensor image data, georeferencing information, and sensor metadata and such file formats include : NITF, GeoTIFF, IMG, JPEG2000, HDF, NetCDF, ECW etc.

Remote Sensing applications perform many features including :
  • Change Detection -- Determine different features from the others based on their DN value and also identify change of earth surface from images taken at different times of the same area.
  • Spectral Analysis -- For example, using different non-visible parts / range of the bands of the electromagnetic spectrum to determine if a forest is healthy.
  • Image Classification-- Identification of different land cover areas or classes by categorization of pixels based on its reflectance.
  • Orthorectification -- Warp an image to its location on the earth.
Some important Remote Sensing software are as follows ---
  1. Geomatica
  2. ENVI
  3. ERDAS  IMAGINE
  4. Ecognition
  5. IDRISI
  6. Google Earth
  7. SOCET  SET (used for photogrammetry)
Other software includes --
  • Opticks (open source)
  • OpenEV (open source)
  • Orfeo toolbox (open source)
  • TNT mips
  • RemoteView
Geographical Information System is a layer wise classification to analysis different raster and vector data of any features of the earth surface. Such layering analysis can be done by some specific designed software like --
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