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I am familiar with the major commercial remote sensing packages (ENVI, IDRISI ERDAS, etc), but I haven't previously had the opportunity to utilize open-source solutions.

I have a several new Landsat-8 images that I would like to mosaic for both simple display and analysis (land cover classification). Is there a go-to open source software for this, or are there many options? A tutorial would also be excellent.

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Mapbox imagery specialist Charlie Loyd wrote a great article for their blog about processing Landsat 8 using only Open Source tools. He added the image to tilemill which you could conceivably use as a basis for mosaicing the scenes together. –  Roy Aug 1 '13 at 17:33
    
Good article on getting started - I'm unfamiliar with tilemill, but it looks to be used for creating web maps. Is there something similar that can be used to create maps for classification purposes? –  Nick Ochoski Aug 1 '13 at 20:29

2 Answers 2

up vote 7 down vote accepted

You may consider GRASS GIS which offers a rather complete processing chain for Landsat including radiance correction for Landsat 8. For details, see

http://grasswiki.osgeo.org/wiki/LANDSAT

Examples:

  • Landsat 1-5,7,8 data import
  • Auto-enhance colors, natural color composites
  • Calculate Top-of-Atmosphere Reflectance and band-6 Temperature
  • Haze removal
  • Atmospheric correction
  • Cloud identification
  • image classification
  • time series analysis
  • Export of results
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Grass works just fine for this and will do as you need. http://grass.osgeo.org/

fast, simple and you can use QGIS as a front end at no cost to you...

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