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The Big List Of Satellite/Aerial Imagery Analysis Programs V – GIS



The last in this series (parts one, two, three, and four). The previous applications have been primarily focused on remote sensing applications, but there are also a number of general purpose freeware GIS programs that include significant remote sensing analysis capabilities.

GRASS

A powerful but often difficult to use GIS program. Quantum GIS is implementing an easier interface for GRASS’s capabilities. A Java version of GRASS (JGRASS) is being built on top of uDIG, but is concentrating on hydrogeological and geomorphological capabilities for now.

  • Canonical component analysis (CCA)
  • Color composite generation
  • Edge detection
  • Frequency filtering (Fourier, convolution matrices)
  • Fourier and inverse fourier transformation
  • Histogram stretching
  • IHS transformation to RGB
  • Image rectification (affine and polynomial transformations on raster and vector targets)
  • Ortho photo rectification
  • Principal component analysis (PCA)
  • Radiometric corrections (Fourier)
  • Resampling
  • Resolution enhancement (with RGB/IHS)
  • RGB to IHS transformation
  • Texture oriented classification (sequential maximum a posteriori classification)
  • Shape detection
  • Supervised classification (training areas, maximum likelihood classification)
  • Unsupervised classification (minimum distance clustering, maximum likelihood classification)

gvSIG

gvSIG is moving towards release of version 2.0, which will add a substantial number of remote sensing analysis functions. If you want to look at an early version, there’s a 1.9 alpha release available.

- Clipping of bands and data
- Export layers
- Save from view to raster file
- Color table and gradient edition
- No data values management
- Pixel process (filters)
- Color interpretation management
- Overview creation
- Enhanced radiometric
- Histogram
- Geolocation
- Raster reprojection
- Georeferencing
- Automatic vectorization
- Band algebra
- Region of Interest (ROI) definition
- Supervised classification
- Semi-supervised classification
- Decision tree
- Transformations
- Image fusion
- Mosaic
- Scatter diagram
- Image profiles

ILWIS

Integrated Land and Water Information System, formerly commercial software, now open source.

  • Image enhancement (contrast, linear stretching)
  • Filtering
  • Band combination and compositing
  • Band ratios and indices
  • Georeferencing
  • Multi-band statistics
  • Principal component analysis
  • Image arithmetic
  • Image fusion (e.g. pan-sharpening)
  • Image classification

MicroDEM

A very strong terrain/DEM analysis program, but has other applications as well, including remote sensing.

  • Contrast enhancement
  • Filters
  • Band histograms
  • Correlation (covariance) matrix
  • Scattergrams
  • Band ratios and normalized indices (e.g. NDVI)
  • Principal components analysis
  • Multi-band merges
  • Image training and classification
  • Hyperspectral image analysis (AVIRIS)
  • Image averaging
  • Pan-sharpening

SAGA

Not primarily a remote sensing application, but has some modules for grid manipulation, statistics and analysis that could be useful.

Spring

  • LANDSAT, SPOT, ERS-1 and NOAA/AVHRR Data input;
  • Registration and Geometric Correction;
  • Image Mosaic with gray level equalization;
  • Image Enhancement by Histogram Manipulation;
  • Spatial Filtering;
  • IHS and Principal Components Transformations;
  • Arithmetical Operations;
  • Pixel Values Reading;
  • Maximum-likelihood pixel-based classifier;
  • Image Segmentation and Region Classifiers (Supervised and Unsupervised);
  • LANDSAT and SPOT Images Restoration;
  • Morphological Filters for Images;
  • Mixture Models;
  • Markov-based Techniques for Image Post-Classification;
  • Radar Image Processing.
  • And if you want to create your own remote sensing analysis program, or add capabilities to a GIS, there’s the Orfeo Toolbox (OTB), an open-source library/API for image processing:

    • image access: optimized read/write access for most of remote sensing image formats, meta-data access, simple visualization;
    • sensor geometry: sensor models, cartographic projections;
    • radiometry: atmospheric corrections, vegetation indices;
    • filtering: blurring, denoising, enhancement;
    • fusion: image pansharpening;
    • feature extraction: interest points, alignments, lines;
    • image segmentation: region growing, watershed, level sets;
    • classification: K-means, SVM, Markov random fields;
    • change detection.

    HT to Melaneum in comments.

    Other posts in the GIS Tools series

    1. Converting E00 Vector Data To Shapefiles – A Free And Fairly Painless Approach
    2. Simplifying Line And Polygon Shapefiles
    3. Converting US Census TIGER Data Into Shapefiles For Free
    4. Converting Shapefiles and ArcINFO Coverages To AutoCAD DXF Format
    5. Converting Point Shapefiles To Text/Spreadsheet Format
    6. Converting Text/Spreadsheet Files To Point Shapefile Format
    7. An Easier Way To Convert Shapefiles to Text/Spreadsheet Format
    8. Converting Text/Spreadsheet Data To Line/Area Shapefiles
    9. Full Resolution Raster Map Combining, Subsetting And Export With The TatukGIS Viewer
    10. Viewing Vector Data In The TatukGIS Viewer
    11. The LizardTech Stand-Alone MRSID Viewer
    12. Converting Raster Area Images Into Polygon Shapefiles
    13. SAGA GIS 2.0 Released
    14. ILWIS GIS Is Now Open Source
    15. AVHRR Analysis Add-On For ILWIS
    16. Advanced Image Mosaicking With Regeemy
    17. A Free GIS Viewer (And Cheap GIS Editor) For Windows Mobile Systems
    18. Updates For MapWindow And Saga GIS Programs
    19. Updates For Two Open-Source GIS Programs
    20. Putting Together A Basic Linux GIS Workstation
    21. Free Online Courses For Open Source GIS
    22. GIS-Oriented Linux Distributions
    23. Tabular Terrain Elevation Data
    24. Quick Data Gridding With QuikGrid
    25. A Good Introduction To Geospatial Data Analysis
    26. Converting Digital Elevation Models To Shapefile/DXF Contours
    27. Fixing "Broken" Shapefiles
    28. A Simple DBF Editor
    29. Two Online Vector GIS/GPS/KML Conversion Utilities
    30. Another Shapefile Repair Tool
    31. Quantum GIS (qGIS) Version 0.10 Released
    32. Online Raster Map Georeferencing/Registration With Map Rectifier
    33. Using The Demo Version Of Global Mapper As A Raster/Vector Data Viewer
    34. New Stable Release Of MapWindow GIS
    35. The Big List Of Free Metadata Software I
    36. The Big List Of Free Metadata Software II
    37. GIS On A Stick

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